Games Like Forts

Command your own fortress in FTL-like real-time battles! Crush the enemy fortress with unrelenting bombardment or seize it with carefully executed invasion.

Why similar: Base Building 47.4%, Strategy 35.6%, 2D 7.1%, Indie 7%, Singleplayer 2.9%

Why You'll Like It: It is the closest match to Forts' side-view fortress management, letting you build out weapon rooms and batter enemy strongholds apart in real time.

Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!

Why similar: Destruction 21.7%, Moddable 21.2%, Level Editor 13.1%, Building 11.8%, Physics 10.5%

Why You'll Like It: It scratches Forts' engineering-and-destruction itch by having you construct machines around physics and then weaponize structural chaos.

Create the ultimate fortress and wreak havoc, raining destruction on your enemies with catapult-flinging fun!

Why similar: Base Building 36.8%, Strategy 26.6%, Multiplayer 15.6%, Action 10.9%, Funny 5.1%

Why You'll Like It: It focuses on real-time offensive and defensive base expansion with direct siege combat, making it one of the most mechanically similar strategy picks.

Cannon Brawl is action RTS and artillery hybrid. Pilot an airship, command powerful weapon emplacements and use the destructible terrain to out think and destroy your enemy! It's a new take on artillery strategy!

Why similar: Multiplayer 42.6%, Strategy 23.2%, 2D 13.1%, Indie 8.1%, Action 8%

Why You'll Like It: This is a fast 2D RTS where you build towers and cannons on the fly while trying to destroy your opponent's defenses from a side-on battlefield.

Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.

Why similar: Building 22.7%, Military 20.8%, Physics 17.9%, Sandbox 17.6%, Multiplayer 12.7%

Why You'll Like It: Its deep vehicle-and-fortress building systems, simulated damage, and custom weapon platforms strongly appeal to Forts players who love creative combat design.

Construct mighty steampunk airships and fly them into battle, waging war and conquering the skies!

Why similar: Moddable 37.1%, Military 22.4%, Building 19.9%, Multiplayer 11.6%, Strategy 5.7%

Why You'll Like It: Like Forts, it revolves around designing armed structures, exploiting weak points, and watching physics-heavy battles tear your creations apart.

Demolish your friends with hundreds of upgradable weapons shot from your customizable tank in this action-packed online multiplayer tanks game. Earn XP to level up and unlock new tanks, weapons, and gear. Fight against or alongside your friends for strategic team or free-for-all matches.

Why similar: Multiplayer 39.4%, Strategy 19.8%, Physics 12.8%, 2D 9.6%, Funny 7.8%

Why You'll Like It: It delivers competitive 2D artillery battles with terrain destruction and tactical shot placement, even if it is less focused on base construction.

The worms are back in their most destructive game yet. With a gorgeous, hand-drawn 2D look, brand new weapons, the introduction of crafting, vehicles and buildings plus the return of some much-loved classic weapons and gameplay, Worms W.M.D is the best worms experience ever.

Why similar: Multiplayer 36.7%, Strategy 23.3%, Funny 13.5%, Memes 12.5%, Action 6.8%

Why You'll Like It: The destructible 2D battlefields, artillery duels, and deployable structures capture a lot of the same playful siege energy as Forts.

An open-ended factory management game with RTS and tower defense elements.

Why similar: Base Building 33.2%, Building 13.5%, Moddable 12.5%, Sandbox 10.9%, Multiplayer 8.7%

Why You'll Like It: Its real-time base construction, defenses, and constant pressure from enemy attacks make it a great fit if you like the strategic building side of Forts.

Would you enjoy building CASTLES, traps and siege machines in MULTIPLAYER? And then undermine your opponents castle and collapse it with 2D PHYSICS & DESTRUCTION?

Why similar: Multiplayer 35%, Building 21.2%, Sandbox 15.2%, Pixel Graphics 6.7%, 2D 5.1%

Why You'll Like It: This multiplayer 2D sandbox combines building, breaching, and chaotic siege warfare in a way that feels very adjacent to Forts.

{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.

Why similar: Moddable 28.8%, Base Building 28.1%, Strategy 11%, Multiplayer 9.7%, Sandbox 9.6%

Why You'll Like It: This is a streamlined multiplayer RTS with strong base-building and mod support that fits Forts fans looking for more compact tactical matches.

Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!

Why similar: Building 21.2%, Base Building 17%, Physics 15%, Sandbox 14.9%, Multiplayer 11.8%

Why You'll Like It: It offers highly flexible multiplayer building with physics-driven contraptions, appealing to Forts players who enjoy experimentation and emergent destruction.

Do whatever you want in a physics sandbox full of chaotic destruction, endless player-made creations and unpredictable adventures. Build, destroy, roleplay and mess around solo or with friends!

Why similar: Destruction 33.8%, Building 17.7%, Sandbox 16.6%, Physics 13.7%, Multiplayer 11.8%

Why You'll Like It: Its build-anything sandbox and spectacular vehicle destruction make it a strong pick for players who mainly love Forts' physics mayhem.

Welcome to the world of CastleStorm, a super genre mashup of 2D physics destruction mashed with tower defense brawler! CastleStorm was born out of the fond childhood memory of building and destroying LEGO castles.

Why similar: Destruction 49.1%, Funny 11.9%, Strategy 10.6%, Physics 8.7%, Multiplayer 7.5%

Why You'll Like It: Its side-view castle building and projectile-based demolition make it a natural pick for anyone who enjoys Forts' fortress-vs-fortress feel.

Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.

Why similar: Moddable 24.7%, Base Building 19.5%, Building 13.7%, Physics 12%, Sandbox 11.3%

Why You'll Like It: If your favorite part of Forts is engineering custom structures and vehicles with physics consequences, this is a natural sandbox step up.

Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.

Why similar: Base Building 39.1%, Building 25.6%, Tactical 18.4%, Strategy 11.7%, Indie 2.8%

Why You'll Like It: It emphasizes building structurally sound fortifications block by block and then defending them under pressure, echoing Forts' love of architecture as strategy.

TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.

Why similar: Building 34.6%, Sandbox 25.1%, Multiplayer 16.9%, Physics 10.1%, Strategy 6.6%

Why You'll Like It: It channels the same creative combat-building spirit by letting you assemble modular war machines and test them in battles.

Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.

Why similar: Building 35.8%, Sandbox 24.8%, Strategy 15.9%, Multiplayer 14.1%, Moddable 6%

Why You'll Like It: It revolves around constructing defensible structures and holding them against attack, appealing to the defensive-building side of Forts.

The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.

Why similar: Base Building 28.5%, Military 24.7%, Building 20%, Sandbox 16.1%, Strategy 8.7%

Why You'll Like It: Although less physics-driven, it is still one of the best fortress-building and siege-focused RTS games on Steam.

Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.

Why similar: Sandbox 25.1%, Base Building 19.3%, Building 14%, Physics 10.4%, Multiplayer 10.2%

Why You'll Like It: This 2D game blends building, terrain, defense, and survival in a way that feels surprisingly close to Forts' side-view fortification gameplay.

War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.

Why similar: Base Building 45%, Military 20.3%, Multiplayer 17.1%, Strategy 15.5%, Singleplayer 1.2%

Why You'll Like It: It is a multiplayer RTS with strong base-building and aggressive attacks, suited to Forts players who want competitive strategy with a lighter commitment.

Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!

Why similar: Base Building 29.5%, Destruction 22.4%, Building 19.1%, Multiplayer 13.6%, Strategy 12%

Why You'll Like It: Its large-scale RTS battles and emphasis on expanding, fortifying, and obliterating bases make it a good match for Forts players who want bigger warfare.

With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.

Why similar: Strategy 39.6%, Multiplayer 36.3%, Base Building 13.9%, Indie 7.1%, Singleplayer 3.2%

Why You'll Like It: This free RTS offers advanced base-building, terrain-aware combat, and huge destruction-focused battles with plenty of strategic creativity.

Build a castle by day and defend it by night. Becastled blends cozy city-building with challenging tower defense strategy. Lead the Sun Kingdom’s last stand against the Moon Beasts and end the ancient conflict between light and darkness!

Why similar: Base Building 43.9%, Building 18.6%, Military 16.2%, Strategy 12.6%, Tactical 6.7%

Why You'll Like It: Its core appeal is designing a defensible fortress and seeing whether your layout actually holds under repeated assaults.

Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.

Why similar: Base Building 30%, Building 22%, Sandbox 18.1%, Strategy 12.3%, Multiplayer 8.3%

Why You'll Like It: It is another excellent castle-focused RTS where thoughtful wall placement, defenses, and siege pressure take center stage.

Prepare the perfect heist in a fully destructible, simulated voxel world. Tear down walls with vehicles or use explosives to create your own shortcuts. Shape the environment to your advantage in the most creative ways you can imagine. Play solo or with up to 12 players in multiplayer.

Why similar: Destruction 45.4%, Physics 19.2%, Sandbox 17.8%, Multiplayer 11.5%, Action 2.7%

Why You'll Like It: While more sandbox than strategy, it captures the same joy of engineered destruction and watching structures fail spectacularly.

In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.

Why similar: Building 39.6%, Multiplayer 18.8%, Strategy 17.4%, Sandbox 14.7%, 2D 3.3%

Why You'll Like It: It combines custom unit design with multiplayer strategy, echoing Forts' emphasis on player-created combat solutions.

ABRISS is an atmospheric physics-destruction building game.Build structures from parts to let them crash into your targets. Unlock new parts, destroy more, witness entropy at its worst in digital-brutalist cityscapes. Build to destroy.

Why similar: Destruction 37.3%, Building 19.3%, Physics 17.6%, Sandbox 16%, Strategy 8%

Why You'll Like It: It lacks the RTS layer, but its whole appeal is understanding structures and making them collapse in satisfying physics-driven ways.

Customize your unique faction in a new take on real-time strategy as you fight in a variety of skirmish, solo, and multiplayer battles. You are not only a commander, but also an engineer – so you have ultimate control over your faction’s units, factories, superweapons and economy.

Why similar: Strategy 54.6%, Multiplayer 32.5%, Indie 9.6%, Singleplayer 3.2%

Why You'll Like It: Its faction customization and classic base-building RTS structure resonate with Forts players who enjoy tailoring their tools before battle.

Be the leader of wobblers from ancient lands, spooky places, and fantasy worlds. Watch them fight in simulations made with the wobbliest physics system ever created, make your own wobblers in the unit creator and send your army off to fight your friends in multiplayer.

Why similar: Sandbox 27.8%, Physics 22.6%, Memes 16.3%, Funny 13.7%, Strategy 11.4%

Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.

Why similar: Base Building 38.9%, Sandbox 15.5%, Moddable 14.9%, Building 10.1%, Multiplayer 8.8%

Commander in the ranks. Soldier at heart. Choose a faction and deploy and command your army into massive physics-driven WWII battles to the last man standing. Destroy everything on sight with an insane amount of units that will behave tactically.

Why similar: Sandbox 32.6%, Strategy 25.5%, Physics 15.3%, Action 8.1%, Multiplayer 7.3%

Dive into a sandbox full of action and customization! Choose from different game modes like deathmatch, conquest, king of the hill, zombie survival and many more. Create your own scenarios and content in the easy to use in-game editors or use one of the 50k+ workshop items from other players...

Why similar: Moddable 28.5%, Sandbox 20.8%, Physics 11.8%, Strategy 8.2%, Military 8.2%

Build a wooden fort, place your units, watch the mayhem!

Why similar: Destruction 18.8%, Base Building 13.6%, Physics 12.2%, Sandbox 12%, Military 11.5%

The ultimate physics-based, sandbox battle simulator where you can create funny battles between all sorts of ragdoll creatures! You can also make your own monsters with the unit creator or even join the battles yourself in the first-person mode!

Why similar: Moddable 26.8%, Memes 16.9%, Sandbox 14.3%, Physics 13.1%, Tactical 10.1%

Unleash your engineering creativity with an engaging and fresh bridge-building simulator with all the bells and whistles. Enjoy hours of physics-based puzzle solving in the Campaign and then jump in the Sandbox to create your own bridge designs and puzzles!

Why similar: Building 33%, Physics 22.9%, Level Editor 16.7%, Sandbox 13%, Funny 6%

Fight upon the Ravenfield together with your Blue allies! Take down those pesky Reds using helicopters, tanks, guns, and active ragdoll physics!

Why similar: Military 25.3%, Moddable 22.1%, Sandbox 16.9%, Physics 9.1%, Tactical 8.9%

Crazy physics and high-speed races! Craft vehicles cleverly by combining building blocks and mechanical parts to create powerful drivetrains. Unlock new parts, race for the gold, and challenge your friends in multiplayer.

Why similar: Destruction 34.8%, Building 23.8%, Physics 20.2%, Multiplayer 15.5%, Action 2.5%

8-Bit Armies is a retro Real-Time Strategy game. With a colorful, blocky voxel art style, 8-Bit Armies is Petroglyph's most fast-paced, friendly, and accessible RTS game to date. Featuring a campaign of 25 single-player missions, 12 co-op missions, multiplayer and skirmish modes.

Why similar: Strategy 32.5%, Base Building 28.2%, Multiplayer 19.1%, Pixel Graphics 10.4%, Indie 5.6%

Rounds is a 1v1 rogue-lite shooter where each round gets more intense. The losing player of each round unlocks clever upgrades to create a better build to counter their opponent.

Why similar: Multiplayer 39.3%, Physics 38.4%, 2D 9.1%, Action 8.1%, Indie 5.2%

Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, and defend your stronghold against relentless attacks. In this action-packed block-builder, survival is earned, and only the strongest will remain.

Why similar: Base Building 43.8%, Level Editor 24.5%, Sandbox 21.7%, Action 6.1%, Strategy 3.3%

Become a master strategist in this physics-based Real-Time Tactics game! Command minifig-inspired armies and customize strategies with hand-drawn formations. Conquer unique campaigns for all five armies and unleash massive battles in both single-player and multiplayer modes. Victory awaits!

Why similar: Physics 31.6%, Sandbox 16.5%, Multiplayer 12.9%, Tactical 12.8%, Funny 8.5%

The greatest rock-racing, tower defense, art history game is back! Like the title says, Bigger & Boulder cranks up the surrealism and gameplay with chaotic 4P multiplayer, new time periods, and improved graphics, physics, and destructibility powered by UE4 to be, well… BIGGER AND BOULDER.

Why similar: Strategy 25.2%, Multiplayer 23.6%, Funny 13.7%, Destruction 13.6%, Memes 10.9%

Extremely Realistic Siege Warfare Simulator is a physics-based tactical strategy game where you must lead a military force in a fantasy medieval world. Build an army. Construct siege equipment. Experience epic battles. Lead your people to victory!!

Why similar: Moddable 24.3%, Building 17.5%, Sandbox 14.6%, Physics 14.6%, Tactical 10.4%

Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

Why similar: Building 37.7%, Multiplayer 21.2%, Strategy 15.2%, Pixel Graphics 8.9%, 2D 8%

A 2D multiplayer sandbox game revolving around industry, innovation, factions, combat and emergent gameplay. Design factories, customize tools and weapons, fight or trade with other players or get viciously murdered by an angry badger.

Why similar: Base Building 19.5%, Destruction 18.5%, Military 12.5%, Physics 11.7%, Building 11.6%

Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

Why similar: Moddable 25.5%, Destruction 20.8%, Sandbox 18.2%, Physics 14.2%, Building 8.5%

Shieldwall is a funny third-person tactical battle simulator with strategy elements. It allows you to feel like a squad leader right on the battlefield.

Why similar: Multiplayer 21.9%, Strategy 19.6%, Funny 17.6%, Physics 15%, Sandbox 10.5%

Uncrewed is a real-time strategy game with the ability to design units from scratch. Unlike in more traditional RTS, units obey the laws of physics, making design choices especially important.

Why similar: Base Building 23%, Building 18.8%, Sandbox 16.2%, Strategy 15.3%, Physics 9.9%

A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.

Why similar: Destruction 30.4%, Building 16.3%, Physics 15.3%, Sandbox 15%, Memes 8%

With your brilliant robe and magic powers, it’s time to build some Tricky Towers! Stack your bricks in this land of fable, whose marvelous tower will be the most stable? Battle your friends and rise to fame, in this frantic physics game.

Why similar: Building 28.6%, Physics 26.4%, Multiplayer 20.4%, Funny 12.2%, Strategy 10%

Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.

Why similar: Moddable 24.1%, Base Building 21.8%, Military 15.3%, Sandbox 12.9%, Tactical 11%

Clone Drone in the Danger Zone is a robot voxel slice-em-up where any part of your body can be sliced off. With your mind downloaded into a robot gladiator, you must survive the sinister trials of the arena.

Why similar: Multiplayer 40.7%, Funny 22.1%, Pixel Graphics 13.4%, Action 12.9%, Indie 6.1%

Competitive tower defense meets arcade action and gets rolled up with ACE Team's quirky, Monty Python-esque humor into one giant, creative game for the ages. This time around, you can even make your own levels!

Why similar: Destruction 36%, Level Editor 13.9%, Building 12.8%, Multiplayer 12.6%, Strategy 9.6%

Step into the boots of a medieval engineer and master the art of siege warfare. In Medieval Machines Builder, you design, build, and operate powerful war machines capable of bringing down even the strongest fortress walls.

Why similar: Destruction 35.7%, Building 18.9%, Physics 16.9%, Sandbox 15%, Funny 6.9%

Foxhole is a massively multiplayer game where thousands of players shape the outcome of a persistent online war. Every individual soldier is a player that contributes to the war effort through logistics, base building, reconnaissance, combat, and more.

Why similar: Base Building 27.9%, Military 23.9%, Sandbox 15%, Tactical 12.8%, Multiplayer 10.9%

Easy to learn, hard to master. A simple & free RTS game.

Why similar: Military 23.2%, Strategy 23.1%, Multiplayer 19%, Level Editor 14.2%, Tactical 12.8%

The acclaimed bridge-building indie-hit is back! More levels, more features, more physics fun!

Why similar: Building 29.8%, Physics 20.9%, Level Editor 19%, Sandbox 16.2%, Strategy 6.3%

D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.

Why similar: Memes 24.9%, Base Building 24.4%, Building 13.7%, Multiplayer 13.5%, Strategy 8.9%