- #1 Obelisk Foundry
97% match3 user reviews100% of 3 reviews2025
Dev: ZxStudio
Windows
Build orbital factories, mine asteroids & trade with aliens in this deep space strategy game! Research tech, manage production chains, and choose: peaceful trade or combat when mysterious ships arrive. The ultimate industrial space empire simulator!
Why similar: Science 18.1%, Space Sim 15.9%, Economy 15%, Management 11.4%, Resource Management 11.3%
- #2 Space Station Continuum
96% matchNegative15% of 39 reviews2020
Dev: N-Body Solutions
Windows
Space Station Continuum is a building & management sim inspired by the past, present, and future of humans in space.
Why similar: Space Sim 18.1%, Science 14.9%, Economy 13%, Management 9.9%, Space 9.6%
- #3 orbit.industries
96% matchMixed61% of 88 reviews2022
Dev: LAB132Pub: Klabater
Windows · Linux
🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!
Why similar: Space Sim 17.2%, Space 12.5%, Science 11.6%, Economy 10.4%, Resource Management 9.6%
- #4 Port Aphelion
95% matchNo user reviews
Dev: John Pile Jr
Windows
Port Aphelion is a trading-simulation and adventure game where players build their economic empire through honest trade, smuggling, bounty-hunting, or all-out piracy!
Why similar: Economy 16.8%, Capitalism 15%, Space 11%, Procedural Generation 9%, Open World 8.7%
- #5 Space Travellers
94% matchNo user reviews
Dev: Lonely Man
Windows
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
Why similar: Space Sim 25.8%, Procedural Generation 12.6%, Space 11.8%, Immersive Sim 9.5%, Open World 8.3%
- #6 Economica
94% match6 user reviews33% of 6 reviews2020
Dev: WellTide
Windows · Mac · Linux
Overproduction Crisis Simulator
Why similar: Capitalism 25.6%, Economy 22.4%, Management 15%, Resource Management 14.9%, Space 11.4%
- #7 Starship Contractor: Galactic Tycoon
93% matchNo user reviews2026
Dev: Decha Studio/Rashaun
Windows
Shape the Galactic Arms Race. As CEO of a private space arms company, design modular ships, research breakthrough tech, and win faction tenders. Outmaneuver rivals in prototype races and make critical choices that make every playthrough unique, from a startup to galactic dominance.
Why similar: Capitalism 18.2%, Economy 16.6%, Space Sim 14.4%, Management 11.5%, Resource Management 10.9%
- #8 Interstellar Inn
92% matchNo user reviews
Dev: Kunaya
Windows
Interstellar Inn is a 2D hotel building and management sim in space.
Why similar: Economy 19.1%, Space Sim 17.7%, Management 13.1%, Space 11.4%, Sandbox 10.2%
- #9 Orbital Express
91% matchNo user reviews
Dev: Igor Trnka
Windows
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 25.6%, Science 11%, Immersive Sim 10.6%, Strategy 9.1%, Simulation 9%
- #10 Nebula Miner
91% match2 user reviews50% of 2 reviews2026
Dev: Tacit Software Solutions
Windows
Nebula miner puts you in control of a space mining company. A real time resource management game where you need to explore space to find resources, and then harvest them efficiently.
Why similar: Economy 18.2%, Space 16.6%, Space Sim 16.1%, Resource Management 15.3%, Capitalism 10.5%
- #11 Shadow Division: Spymaster
90% matchNo user reviews
Dev: Asterism Games
Windows
A modern-day strategy game where you lead a covert intelligence agency, run sabotage and assassination missions, manipulate international politics, and adapt your strategy in a highly replayable campaign.
Why similar: Espionage 64% ★, Management 11.2%, Immersive Sim 8.5%, Sandbox 5.4%, Strategy 4.3%
- #12 Astero Inc.
89% match6 user reviews100% of 6 reviews2021
Dev: LamaGlama Games
Windows
Astero Inc. is a space mining simulation game where players will travel to a dystopian future in a tense competition for asteroid mining rights throughout the universe. Take on the role of a small business owner in an all-out fight against the mighty Black Corp.
Why similar: Space Sim 17.9%, Capitalism 16.4%, Management 11.2%, Resource Management 10.4%, Space 10.3%
- #13 Rionag: Survey Fleet
89% match1 user reviews0% of 1 reviews2024
Dev: Reul Games
Windows · Linux
Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.
Why similar: Space Sim 25.8%, Science 17.6%, Economy 13.3%, Space 9.8%, Management 9.2%
- #14 Space Sim Tycoon
88% match5 user reviews60% of 5 reviews2025
Dev: SuperChicken Productions LLC
Windows
Space Sim Tycoon – A sandbox transportation tycoon game where you can explore forbidden planets, gather resources, craft goods, and establish routes to manage your space empire.
Why similar: Space Sim 27.6%, Management 10.5%, Simulation 9.6%, Sandbox 9.2%, Space 9%
- #15 Star Life
87% matchNo user reviews2026
Dev: 21HOBNAILS
Windows
Star Life is a space sandbox RPG where you start on a planet and carve your own path. Develop skills through "learn by doing," influence dynamic economies, schedule your life with the "Life Planner," and face the challenges of space. Balance risk and survival in a universe shaped by your choices.
Why similar: Space Sim 16.6%, Economy 16.4%, Capitalism 12%, Management 9.2%, Space 7.9%
- #16 Solar Expanse - Space Exploration Manager
85% matchVery Positive87% of 941 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.9 hrsMean: 12.3 hrs≥1hr: 80%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Space Sim 20.6%, Science 19.4%, Space 13.3%, Management 10.7%, Resource Management 9.3%
- #17 Beltlife: Prospector
86% match2 user reviews100% of 2 reviews2026
Dev: JMGffs LLC
Windows
Beltlife: Prospector is a GUI-based "hard" sci-fi business/work sim with economy simulation and RPG elements. Your focus is on maintaining your ship's systems and your health while prospecting for asteroid claims to auction on simulated markets.
Why similar: Economy 21.7%, Space Sim 17.8%, Space 17%, Resource Management 11.2%, Management 10%
- #18 Satellite Command
86% matchMixed64% of 81 reviews2016
Dev: Stormtide
Windows
Satellite Command is a realistic, relaxing astrophysics simulator. Complete contracts with real data, launch and take control of ever more powerful Satellites, research advanced technology and build your Space Agency!
Why similar: Space Sim 21.3%, Science 17.9%, Space 11.5%, Economy 10%, Management 9.8%
- #19 Space Supermarket Simulator
84% matchMostly Positive73% of 15 reviews2026
Dev: Mythforge Games
Windows
Run your own supermarket in outer space. Keep shelves stocked and nicely organized. Supply your store with drone delivery. Will you take the duty of running a space supermarket?
Why similar: Economy 19%, Space Sim 17.9%, Space 14.4%, Capitalism 12%, Resource Management 9%
- #20 Astral Enterprises
84% matchNo user reviews
Dev: Cosmic Fin Studios
Windows · Mac
As CEO, build your corporate empire! Design space-efficient factories in a grid-based puzzle system. Fund cutting-edge research to optimize production, master complex supply chains, and dominate a living interstellar economy.
Why similar: Economy 19%, Management 16.3%, Resource Management 16%, Base Building 9.2%, Space Sim 8%
- #21 Orbitect
83% matchMixed62% of 13 reviews2023
Dev: Propulsion Games
Windows
Space debris is out of control! Craft a station to take out the trash in this construction roguelite mashup.
Why similar: Space Sim 20%, Capitalism 13.4%, Science 12%, Economy 11.6%, Space 10.9%
- #22 Brewconomy
82% matchNo user reviews
Dev: Fainware
Windows
Brewconomy is a relaxing yet challenging builder about farming, crafting, and trade. Begin with a small family workshop and grow into a thriving company. Automate production chains, expand industries, and balance resources to master your own economy.
Why similar: Capitalism 22.1%, Economy 19.5%, Immersive Sim 14.6%, Management 10.8%, Isometric 9.2%
- #23 Starship Simulator
82% matchNo user reviews
Dev: Fleetyard Studios
Windows
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
Why similar: Space Sim 24.8%, Science 17.4%, Space 11.8%, Procedural Generation 9.7%, Open World 9%
- #24 Project manager SIM
81% matchNo user reviews2026
Dev: Escapismogames
Windows
Manage the most unpredictable resource - people - in this WASD tycoon! Plan projects, hire a dream team, assign tasks to specialists, and monitor the budget while upgrading your office. Balance between team burnout, complex contracts, and the wrath of upper management.
Why similar: Capitalism 25%, Economy 21.7%, Management 19.2%, Resource Management 17.8%, Simulation 6.6%
- #25 Investment Fund Game
81% matchNo user reviews2026
Dev: 57 Software
Windows
Investment Fund Game is a singleplayer sandbox simulation where you become the manager of an investment fund. Buy stocks, bonds, commodities. Test different investment strategies, track your performance, and compete with AI-driven funds using their own approaches.
Why similar: Capitalism 24.4%, Economy 22.1%, Management 14.2%, Resource Management 10.3%, Simulation 9.5%
- #26 Hyperspace Hub Manager
80% match1 user reviews100% of 1 reviews2025
Dev: Uncanny Mercantile
Windows
Master hyperspace trade in this sci-fi sim! Manage tariffs on 5 exotic resources, grow your Ecumenopolis, and outwit smugglers. Strategic fun for all!
Why similar: Economy 27.3%, Capitalism 23.8%, Management 11.1%, Resource Management 10.9%, Simulation 9.8%
- #27 Big Ambitions
79% matchVery Positive93% of 12,848 reviews2023
Dev: Hovgaard Games
Windows · Mac
Median: 11.0 hrsMean: 24.8 hrs≥1hr: 88%
Big Ambitions is a revolutionary role-playing business sim. Go from nothing to the biggest entrepreneur in New York by opening small businesses or slowly building huge corporations any way you like.
Why similar: Economy 22.7%, Capitalism 22.6%, Management 21.5%, Resource Management 8.5%, Immersive Sim 6.6%
- #28 RemoteSpace: First Settlement
78% matchNo user reviews
Dev: ShadowDev
Windows
A sci-fi settlement building game with orbital mechanics. Start from a spaceship, scan asteroids, manage fuel, ore, electricity, time, and sanity, while expanding your settlement, exploring an alien solar system, and building stations and spacecraft to support your growing colony.
Why similar: Space Sim 27.9%, Science 15.4%, Resource Management 13%, Space 9%, Base Building 7.2%
- #29 VOID PROFIT
77% matchNo user reviews2026
Dev: Corvid Food
Windows
Fly a rented ship in a procedurally-generated universe, navigate risky routes, and profit from changing markets before the opportunity disappears and you lose it all. Take jobs, navigate the markets, smuggle, lie. Do everything in order to keep flying.
Why similar: Space Sim 37.2%, Economy 16.1%, Simulation 11.2%, Space 8.2%, Sci-fi 5.3%
- #30 Planet Factory
76% matchPositive86% of 28 reviews2024
Dev: SupremeGuardianGames
Windows
A small quick game about building a factory to launch planets into a solar system! Grow your base and increase production to make the ultimate factory for launching planets!
Why similar: Space Sim 27.6%, Management 10.5%, Strategy 10.1%, Simulation 9.7%, Sandbox 9.3%
- #31 MegaFactory Titan
77% matchMostly Positive78% of 140 reviews2022
Dev: Q Switched Productions, LLC
Windows · Mac · Linux
A factory-building game. Survive a harsh climate, strip mine an infinite world, and build a sprawling factory, then trade or go to war with Colonists, Governments, Pirates, Rebels, and more!
Why similar: Capitalism 14.7%, Science 12.2%, Economy 12%, Resource Management 11.5%, Procedural Generation 10.6%
- #32 X3: Reunion
79% matchMostly Positive72% of 728 reviews2006
Dev: Egosoft
Windows · Mac · Linux
Median: 36 minMean: 8.8 hrs≥1hr: 41%
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Why similar: Space Sim 27.1%, Space 22.3%, Economy 16.1%, Sandbox 7.5%, Sci-fi 7.3%
- #33 X3: Terran Conflict
78% matchVery Positive85% of 2,848 reviews2008
Dev: Egosoft
Windows · Mac · Linux
Median: 1.1 hrsMean: 32.1 hrs≥1hr: 51%
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Why similar: Space 25.2%, Space Sim 21.7%, Economy 10.7%, Sandbox 8.1%, Open World 7.5%
- #34 Nonentity Galaxy
73% matchOverwhelmingly Positive95% of 546 reviews2026
Dev: Brick-Up StudioPub: 2P Games
Windows
Fight, Scavenge, Survive, and File Your Taxes. A grim yet hilarious space strategy roguelite where you must balance hull integrity against your company's relentless profit margins. Warning: Contains lethal doses of dark humor and corporate exploitation.
Why similar: Space Sim 20.4%, Capitalism 15.6%, Resource Management 11.5%, Management 10.5%, Space 10.1%
- #35 SkyRig
74% matchNo user reviews
Dev: Rocket Flair StudiosPub: Astra Logical
Windows
Build floating automated rigs in a volatile gas giant. Extract elements, synthesize compounds, and descend through atmospheric layers in this sci-fi systems-builder focused on chemistry, engineering, and survival.
Why similar: Science 19.5%, Space Sim 16.8%, Management 12%, Resource Management 11.3%, Space 11.2%
- #36 Search
75% match5 user reviews80% of 5 reviews2023
Dev: Ahmad R.H.
Windows
The existence of all mankind is under threat. You are the only hope!
Why similar: Space Sim 27.8%, Science 19.6%, Space 16.5%, Management 9.9%, Resource Management 9.7%
- #37 Solar Baron
74% matchNo user reviews
Dev: Preon Studio
Windows
As head of an interplanetary corporation, your goal is to extract resources from across the solar system and bring them home faster and cheaper than your competitors. Construct trade depots and colonies. Build rockets and spaceports. Master realistic orbital mechanics and maximize profits.
Why similar: Space Sim 21.4%, Resource Management 15%, Economy 12.7%, Space 12.3%, Management 11.5%
- #38 Galduen of the Void
73% match7 user reviews57% of 7 reviews2025
Dev: AzurDevPub: Azurdev
Windows · Linux
A fantasy space agency management game! Manage your team, design your space ship and research new technology! Reach moons, planets and the void beyond. Can you reach the void? Can you bring Galduen to the void?
Why similar: Space Sim 31.8%, Management 18.8%, Space 17.1%, Resource Management 13.2%, Sci-fi 7.2%
- #39 SOLUM
73% matchNo user reviews
Dev: Immortal Tea Party
Windows
SOLUM is a floating-island factory sandbox. Extract Sol and automate production across an expanding Island-Network. Build networks, route goods, and keep your islands stable against the pull of a collapsed star.
Why similar: Management 14.5%, Resource Management 14.4%, Science 13.9%, Space 10.7%, Sandbox 9.2%
- #40 X: Tension
75% matchMostly Positive78% of 138 reviews2010
Dev: Egosoft
Windows
Median: 6 minMean: 3.2 hrs≥1hr: 15%
X-Tension is the eagerly awaited expansion pack to X: Beyond the Frontier. The expansion is not limited by a linear plot line but makes use of new ways to expand your empire. You can now take part in missions that are offered to you throughout the game.
Why similar: Space Sim 29.2%, Space 19.1%, Economy 14.7%, Simulation 11.9%, Sci-fi 9%
- #41 Astrobound
72% matchNo user reviews2026
Dev: Doink Studios
Windows
Survive and explore space in Astrobound! Visit strange planets, encounter cosmic calamities, and keep your crew alive as you journey through the stars in a retro-inspired whimsical space adventure.
Why similar: Space Sim 24.2%, Management 14.8%, Space 13.6%, Immersive Sim 13.2%, Roguelike 9.6%
- #42 What the Stars Forgot
72% matchNo user reviews
Dev: Airlock Games
Windows
What The Stars Forgot is a retro-styled sci-fi horror management sim. As an advanced starship's cutting-edge AI, you have to guide a procedurally generated crew of hundreds as they embark on a dangerous mission to discover the source of an anomalous signal emanating from deep space.
Why similar: Space Sim 19.4%, Management 16.6%, Procedural Generation 14.4%, Roguelike 10.2%, Resource Management 9.7%
- #43 Dead 4 Now: Bio-Weapon Simulator
70% matchMostly Positive76% of 25 reviews2026
Dev: d'Evo
Windows
Craft bio-weapons, master lethal science, and unleash global annihilation. Experiment. Fail. Adapt. Evolve. Repeat until humankind falls.
Why similar: Capitalism 25.5%, Economy 18%, Management 12.6%, Resource Management 11.2%, Immersive Sim 9.4%
- #44 Possible One: Lunar Industries
69% matchMixed68% of 19 reviews2026
Dev: Upstairs Games
Windows
Stake your claim in the first realistic lunar colony management game! Use proven, real-world technologies to plan and grow your colony, mine resources, ship them to Earth, and keep the board of directors happy in this science-based colony sim.
Why similar: Space Sim 23.5%, Science 14.2%, Economy 13.5%, Management 9.5%, Resource Management 8.5%
- #45 Tin Can
71% matchVery Positive85% of 1,321 reviews2022
Dev: Tin Can Studio
Windows
Median: 1.1 hrsMean: 6.0 hrs≥1hr: 52%
You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?
Why similar: Space Sim 21.5%, Space 15.8%, Science 14%, Resource Management 11.2%, Management 9.1%
- #46 Banker Simulator
69% matchMixed62% of 684 reviews2025
Dev: Red Axe Games
Windows
Banker Simulator is a single-player game where you revive a bankrupt bank. With active and passive (idle) gameplay, make strategic decisions to grow your bank, satisfy customers, and tackle financial crises.
Why similar: Capitalism 20.6%, Economy 19.2%, Management 13.7%, Immersive Sim 12.4%, Resource Management 8.8%
- #47 Orbital Drop Shipping
71% matchNo user reviews2024
Dev: Triverske
Windows
An orbital mashup of physics, puzzles, and business simulation! Navigate packages through a galaxy using gravity and tools like slingshots, mass drivers, and cannons. Create your own levels & share them with the world via Steam Workshop. The ultimate space delivery challenge awaits!
Why similar: Space Sim 26%, Capitalism 15.4%, Management 13%, Space 10%, Sandbox 9%
- #48 Your Spaceport!
70% match9 user reviews89% of 9 reviews2023
Dev: LokaFab
Windows
Manage your very own space station in this Tycoon game. Sell fuel and repairs to the visitors. Manufacture and research new ways to defend your business and make more money while balancing your relations towards other factions. Survive against all odds.
Why similar: Space Sim 21.2%, Capitalism 19.5%, Economy 17.3%, Space 8.6%, Management 8.5%
- #49 Uber Urban
69% match9 user reviews100% of 9 reviews2025
Dev: J.F
Windows · Mac
Build your city in multiple different hand-crafted worlds and manage all the complexities that a real mayor would. From city services to demand, finances, policies, approval ratings and re-election, Uber Urban offers a complete and innovative take on the city building genre.
Why similar: Capitalism 18.2%, Economy 17%, Procedural Generation 14.2%, Management 12.3%, Isometric 10.5%
- #50 X2: The Threat
71% matchVery Positive83% of 522 reviews2006
Dev: Egosoft
Windows
Median: 24 minMean: 7.4 hrs≥1hr: 35%
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
Why similar: Space 23.2%, Space Sim 22.5%, Economy 15.9%, Open World 8.5%, Strategy 8.1%
- #51 Space Colony: Steam Edition
70% matchVery Positive80% of 658 reviews2015
Dev: Firefly Studios
Windows
Median: 3.4 hrsMean: 4.8 hrs≥1hr: 87%
Space Colony: Steam Edition is a remaster of the real-time base builder and strategy game from Firefly Studios, creators of the Stronghold series. In Space Colony you colonize to survive, designing intergalactic bases that keep your crew productive, happy and defended against hostile alien threats.
Why similar: Space Sim 20.1%, Economy 12.2%, Immersive Sim 9.8%, Management 8.8%, Isometric 8.4%
- #52 Epic Space Trader
67% matchPositive100% of 10 reviews2024
Dev: Digital Tectonics, LLC
Windows · Mac · Linux
Commanding a starship, you’ll trade goods across the galaxy, evade cosmic threats, and grow your trading empire. Do you have what it takes to outmaneuver rivals and become a trading legend? Take command of your destiny in Epic Space Trader, your journey to the stars begins now!
Why similar: Space Sim 25.2%, Economy 21%, Management 14.7%, Space 11%, Sci-fi 8.9%
- #53 Deep Claims
67% matchNo user reviews2026
Dev: Promination Studios
Windows
Deep Claims is a space exploration game where you upgrade your ship and equipment in order to mine increasingly valuable and hazardous asteroids. Can you make it to the core?
Why similar: Space Sim 24%, Management 18.8%, Space 14.2%, Sandbox 10.5%, Procedural Generation 10.4%
- #54 Protospace
67% matchNo user reviews
Dev: Drummo
Windows
Haul cargo, hunt bounties, upgrade your ship and get paid in a gritty lo-fi universe. Hand painted graphics, procedural generated star systems that can be navigated, story campaign mode or huge open-world.
Why similar: Resource Management 20.4%, Procedural Generation 13.8%, Sci-fi 12%, Sandbox 9.4%, Space Sim 7.7%
- #55 IMPACT
67% matchMixed56% of 61 reviews2024
Dev: Hochschule Darmstadt
Windows
IMPACT is an immersive sci-fi game set on the Moon. Build and manage a lunar base, generating valuable scientific data along the way. This data is used by the European Space Agency to train a real AI that will eventually land on the Moon.
Why similar: Space Sim 25%, Science 17.9%, Space 11.2%, Isometric 9.7%, Economy 9.3%
- #56 Rocket Science
68% matchVery Positive81% of 171 reviews2020
Dev: unbeGames
Windows
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
Why similar: Space Sim 22.4%, Science 18.9%, Space 13%, Sandbox 7.8%, Open World 7.7%
- #57 Nightlife Tycoon
66% matchNo user reviews
Dev: Koala Studios
Windows · Mac · Linux
Nightlife Tycoon is a bar management game, where you have to build your dream bar and make it thrive. Hire staff, take care of customers, organize incredible events and become the king of nightlife!
Why similar: Economy 21.7%, Management 20.1%, Resource Management 18%, Capitalism 15.8%, Simulation 6.7%
- #58 RoboDeal Simulator
66% matchNo user reviews2026
Dev: Dual Cluster Studios
Windows
Design, craft, and trade robots on the frozen world of Xylaris-9. Serve factions, upgrade your facility, and shape your robotic legacy in Robodeal Simulator.
Why similar: Capitalism 18.9%, Space Sim 18%, Economy 15%, Immersive Sim 10.5%, Space 10.1%