- #1 Keep on Mining!
97% matchVery Positive94% of 8,316 reviews2025
Dev: EagleEye Games
Windows
Median: 4.7 hrsMean: 6.8 hrs≥1hr: 96%
Keep on Mining! is a short incremental mining game. Mine rocks, gather materials, find artifacts, craft pickaxes and spend your materials on permanent upgrades inside the big skill tree!
Why similar: Incremental 20.7%, Mining 19.3% ★, Idler 16.7%, Capitalism 10.8%, Relaxing 6.1%
- #2 Keep on Mining! - Worlds
96% matchVery Positive81% of 1,834 reviews2026
Dev: EagleEye Games
Windows
Median: 8.0 hrsMean: 11.4 hrs≥1hr: 92%
Keep on Mining! – Worlds is an incremental mining game where you mine rocks, collect resources, and travel through many unique worlds, finding artifacts, crafting pickaxes, and purchasing many permanent upgrades!
Why similar: Mining 20.2% ★, Incremental 19.3%, Idler 14.5%, Capitalism 11.2%, Relaxing 6.3%
- #3 Only Mining - Cozy Digging Game
96% matchMostly Positive74% of 35 reviews2026
Dev: Musa GUNGOR
Windows
Only Mining is a mining and crafting game. In this world, you can mine endlessly and craft armor of various levels. Relax and enjoy the journey as you progress from a very slow miner to a super-fast miner.
Why similar: Mining 22.5% ★, Idler 17.7%, Incremental 16%, Capitalism 13.1%, Relaxing 7%
- #4 Hard Rock Clicker
95% matchNo user reviews2026
Dev: IGNUS NEX ENTERTAINMENT
Windows
Turn a simple pickaxe into an unstoppable mining empire. Mine valuable resources, unlock powerful upgrades, automate your production, discover rare ores, and create unique builds through deep upgrade trees and game-changing synergies. Every upgrade brings you closer to unimaginable wealth.
Why similar: Mining 22.2% ★, Idler 18.5%, Incremental 17.7%, Capitalism 11.4%, Relaxing 6.8%
- #5 Totally Rigged
94% matchNo user reviews
Dev: samyamPub: RAWGRAB
Windows
A Totally Rigged incremental game about mining to the center of the earth. Upgrade your drill, hire workers, and collect rare minerals until your fuel depletes.
Why similar: Mining 26.6% ★, Idler 17.1%, Incremental 16.6%, Capitalism 8.4%, Resource Management 6.5%
- #6 Mining Away!
94% matchNo user reviews2026
Dev: Tiny Knight Games
Windows · Mac · Linux
Mining Away! is a short incremental game in which you mine ores, collect resources, progress through the vast skill tree, find rare relics, and unlock powerful pickaxes!
Why similar: Mining 20.1% ★, Incremental 18.7%, Idler 18.4%, Resource Management 7.4%, Economy 7.2%
- #7 Mine Mine
93% match5 user reviews0% of 5 reviews2026
Dev: froggyrs
Windows
Mine Mine is an incremental game about mining ores, upgrading your equipment, and unlocking better and better quarries!
Why similar: Mining 26.3% ★, Incremental 18.4%, Idler 18.2%, Capitalism 12.9%, Economy 9.1%
- #8 Frankenmine
92% matchNo user reviews2026
Dev: Rebel Pickle Games
Windows · Mac
An incremental game where you dig through cursed tombs, harvest bones, flesh, and various resources; stitch together your own creature from nothing. Discover powerful artifacts, experiment with unique combinations, and bring your creation to life—piece by piece.
Why similar: Mining 25.9% ★, Idler 20.3%, Incremental 18.4%, Relaxing 8%, Casual 5.6%
- #9 Mine It All!
91% matchNo user reviews2026
Dev: Golden Pick Games
Windows
Mine everything you see on the screen! A block-mining game focused on upgrades, automation, and endless progression across diverse biomes.
Why similar: Mining 26% ★, Idler 20.8%, Incremental 16.3%, Capitalism 8%, Resource Management 6.6%
- #10 Sporbs
91% matchMostly Positive78% of 88 reviews2026
Dev: Who Nose Studios
Windows · Mac
Pop alien organisms like space bubble wrap in this satisfying incremental. Upgrade your extraction tech, unlock unique abilities, automate a factory, and expand into new areas to maximise your yield.
Why similar: Mining 21% ★, Incremental 16.9%, Idler 14.7%, Capitalism 12.4%, Economy 7.5%
- #11 It's Chopping Time!
90% matchVery Positive88% of 92 reviews2026
Dev: Alexandre Mailliu
Windows
Summon the mighty power of gods in this fun incremental game about chopping down trees on a secluded island by using the forces of nature: earthquakes, sunbeams, tornadoes, hail, lightning strikes and tidal waves! It's Chopping Time!
Why similar: Idler 22.1%, Incremental 20.4%, Capitalism 9.7%, Relaxing 8.7%, Mining 6.8% ★
- #12 Infinite Ruins
89% matchMostly Positive75% of 130 reviews2026
Dev: Kileka Games
Windows
An incremental mining game where you manage golems, destroy blocks, unlock upgrades, and descend infinitely in search of ever more valuable resources.
Why similar: Mining 25.4% ★, Idler 17.9%, Incremental 15.7%, Capitalism 13.7%, Economy 7.7%
- #13 Brick Breaker Upgrade
89% matchMixed67% of 27 reviews2026
Dev: Hausoo
Windows
Brick Breaker Upgrade is a game about growing stronger by breaking bricks. Break bricks to earn resources and upgrade items to improve your mining efficiency.
Why similar: Mining 24.8% ★, Idler 22.3%, Incremental 17.3%, Relaxing 5.6%, Arcade 5.4%
- #14 Nullvein: Incremental Mining Evolution
88% matchNo user reviews2026
Dev: Rolt Games
Windows
Nullvein is a short, satisfying incremental mining game. Break ore blocks, find the perfect build in the skill tree, unearth the impossibly rare Firestone and craft the ultimate pickaxe. Just one more hit!
Why similar: Mining 24.7% ★, Idler 17.2%, Incremental 15.4%, Capitalism 11.2%, Economy 8.2%
- #15 Only Driving - Cozy Car Journey
87% matchPositive88% of 17 reviews2026
Dev: Musa GUNGOR
Windows
Only Driving is a idle car driving game that promises incremental increases. As your vehicle moves automatically, you’ll be able to collect coins along the way and increase your kilometers to get new cars and new upgrades. Every kilometer of this journey will enhance your vehicle and make you rest.
Why similar: Idler 21.8%, Incremental 19.8%, Capitalism 18.5%, Relaxing 8.6%, Casual 6.1%
- #16 Beat the Nettles!
86% matchNo user reviews
Dev: Burg Entertainment
Windows
An incremental game where childhood fun becomes a hobby with RPG elements. Beat weeds with a stick, improve your skill tree, and level up your stats. Simple gameplay, development, and nostalgia for childhood battles with plants.
Why similar: Idler 21.4%, Incremental 19.4%, Capitalism 13.8%, Relaxing 8.4%, Casual 5.9%
- #17 Arcanatica
84% matchNo user reviews
Dev: SUDT Games
Windows
Arcanatica is an incremental game where progress isn’t the main focus, because there isn’t any as such. You must figure out for yourself what happens if you don’t make progress—how long will it take before you give up? Or will progress eventually come, and what will it look like?
Why similar: Idler 16.8%, Capitalism 13.6%, Incremental 10.9%, Economy 9%, Relaxing 6.9%
- #18 Desktop Colony
86% matchPositive100% of 23 reviews2025
Dev: Mechabit
Windows
A cosy incremental semi-idle space colony management game that sits on your desktop while you do other things. Mine asteroids, build ships, expand the colony, research technology, uncover mysteries and explore the universe.
Why similar: Mining 21.2% ★, Idler 17.1%, Incremental 14%, Capitalism 13.9%, Economy 9.4%
- #19 Mining Grounds
84% matchPositive81% of 16 reviews2026
Dev: Jestercraft
Windows · Mac · Linux
A clicker where every click matters. Build chains, break limits, and automate everything. Place characters to trigger powerful combos, unlock upgrades, and scale your clicks to extreme levels. No rush. Just satisfying progression and smart strategy.
Why similar: Mining 33.5% ★, Idler 18%, Incremental 16.6%, Capitalism 7.7%, Relaxing 7.3%
- #20 Spin Power
83% matchNo user reviews2026
Dev: Tasty Colosseum
Windows
A short incremental building game where everything functions with your Spin Power. Build structures, mine resources, unlock new lands, upgrade yourself inside the big skill tree, automate resource mining to increase your income and awake the mysterious water tank from eternal slumber!
Why similar: Idler 22.4%, Incremental 20.3%, Mining 16.2% ★, Relaxing 8.9%, Economy 8.8%
- #21 Idle Isekai Mining
82% matchNo user reviews
Dev: bitVillain
Windows
An Idle game where your workers keep mining even when you're away! Hire workers, collect manager waifus, expand your domain. Unlock, build, upgrade, repeat. Pump those numbers up!
Why similar: Mining 25.5% ★, Idler 21.1%, Incremental 20.1%, Capitalism 6.4%, Resource Management 6.4%
- #22 Digseum
85% matchOverwhelmingly Positive98% of 8,102 reviews2024
Dev: Rat Monthly
Windows
Median: 2.4 hrsMean: 3.4 hrs≥1hr: 93%
Digseum is a short incremental journey about digging up ancient relics and building the greatest museum ever!
Why similar: Mining 21.1% ★, Incremental 19%, Idler 17%, Capitalism 7.3%, Economy 6.7%
- #23 CAT CAT CAT CAT CAT CAT CAT CAT CAT CAT CAT
82% matchVery Positive87% of 71 reviews2026
Dev: CodeTheory Ltd
Windows
Catx11 is a short incremental game. Harvest crops, buy upgrades, hire cats, fight bosses, and level up your gear! Many different strategies and ways to play.
Why similar: Mining 21% ★, Idler 20.5%, Incremental 19.7%, Capitalism 18.2%, Resource Management 6.4%
- #24 BIT-HOLE: Neon Incremental
81% matchNo user reviews2026
Dev: Rift Interactive
Windows
BIT HOLE: NEON Incremental is a compact, straightforward incremental experience. Eliminate viruses, collect data fragments, and unlock massive power spikes by decrypting legendary malware like the "I Love You" worm. A focused cyber-power trip designed for a short, satisfying session.
Why similar: Idler 27.9%, Incremental 19.5%, Capitalism 13%, Relaxing 8.3%, Economy 7%
- #25 Shattermine Idle
81% matchNo user reviews
Dev: Goop Games
Windows
Mine ores, hire workers, unlock powerful abilities, and shatter your way to unimaginable riches in this incremental idle game.
Why similar: Mining 28.6% ★, Idler 23.5%, Incremental 17.7%, Economy 10.8%, Relaxing 3.9%
- #26 That Time I Got Reincarnated as a Tyrant God
79% matchMixed66% of 38 reviews2026
Dev: Sekhmet Games
Windows · Mac · Linux
Slay waves of monsters with your mouse, collect coins, buy permanent upgrades, and grow stronger round after round in a compact incremental action game.
Why similar: Incremental 20.7%, Idler 19.4%, Mining 16.2% ★, Relaxing 9.7%, Casual 5.4%
- #27 A Game About Eating The Universe
80% matchNo user reviews
Dev: Raven Productions
Windows
'A game about eating the universe' is a short, satisfying incremental game. grow a black hole by destroying planets.
Why similar: Incremental 19.6%, Idler 19.5%, Mining 16.4% ★, Relaxing 8.8%, Economy 7.3%
- #28 Pickochet
78% matchMostly Positive71% of 42 reviews2026
Dev: kronPub: Midware Games
Windows
Pickochet is a short, incremental mining game where you mine ore using bouncy ricocheting pickaxes, purchase upgrades, unlock abilities and discover new mining sites.
Why similar: Idler 21.9%, Incremental 17.4%, Mining 14% ★, Capitalism 12.7%, Economy 6.9%
- #29 Raccoon Valley Tycoon
79% matchNo user reviews2026
Dev: Dumivid
Windows
Raccoon Valley is a cozy incremental game about restoring a forgotten raccoon village to its former glory. Dig for resources, collect everything in sight, and watch your little town come back to life.
Why similar: Mining 19.6% ★, Idler 15.7%, Incremental 13.6%, Capitalism 11.8%, Economy 7.3%
- #30 Power Of The Sun
78% matchNo user reviews2026
Dev: Violet Night
Windows
Empower the sun and drive forward the engine of creation of the universe. Collect cosmic resources, generate energy, and evolve through a galaxy of upgrades. Burn brighter and radiate light into the universe!
Why similar: Mining 21.4% ★, Idler 18.6%, Incremental 16.5%, Relaxing 7.3%, Economy 6.3%
- #31 Keep On Hashing!: Idle Mining Sim
77% match1 user reviews0% of 1 reviews2026
Dev: Velron Games
Windows
Mine blocks. Earn Bitcoin, Ethereum, Litecoin and Solana. Hire 20 helpers who mine while you sleep. Upgrade rigs from USB sticks to quantum machines. Climb a 22-node skill tree. Overclock everything. Prestige and chase the next zero. It never ends — and you won't want it to.
Why similar: Idler 24.7%, Incremental 18.6%, Mining 13.3% ★, Capitalism 13%, Economy 8.8%
- #32 Crystal Core
77% matchNo user reviews2026
Dev: Wonderbounce Games
Windows
Incremental mining game about mining resources, digging up artifacts and upgrading your powers to obliterate everything.
Why similar: Mining 31.5% ★, Idler 14.6%, Incremental 13.2%, Resource Management 9.8%, Casual 5.9%
- #33 The Last Mothership
76% matchNo user reviews
Dev: Tiny North Games
Windows · Mac · Linux
A short incremental game about harvesting planets to feed your mothership. Mine, manage resources, grow your fleet, and unlock upgrades to evolve your species. You are the devourer of worlds.
Why similar: Mining 23.1% ★, Idler 21.4%, Incremental 17.4%, Economy 8.3%, Relaxing 7.9%
- #34 Harventure
76% matchNo user reviews2026
Dev: IcyQuill
Windows
Harvest, collect and upgrade! Harventure is a short incremental game about harvesting and using resources on upgrades to purify islands from corruption.
Why similar: Idler 22.4%, Mining 22.2% ★, Incremental 21.1%, Relaxing 9.1%, Resource Management 8.6%
- #35 Mining Wizards
75% matchMostly Positive80% of 122 reviews2026
Dev: TMA Forge
Windows
Mining Wizards is an incremental mining game. Mine minerals, gather materials, upgrade a massive skill tree, level up, unlock talents, discover artifacts, and attract artifact visitors!
Why similar: Mining 20.4% ★, Idler 17.4%, Incremental 14.6%, Capitalism 11.8%, Economy 8.8%
- #36 Chicken Miner
75% matchNo user reviews2026
Dev: Team Cloud
Windows
Capture chickens and bring them to the mine! The captured chickens will mine minerals on behalf of the player. The higher-level hunting grounds you visit, the rarer chickens you can encounter!
Why similar: Mining 33.1% ★, Idler 24.4%, Incremental 22.4%, Resource Management 9.1%, Casual 3.9%
- #37 PETRIVORE
74% matchNo user reviews2026
Dev: Tiny Badger
Windows
An incremental game that grow a speck into a huge, mutant beast. Pop food in a petri dish, feed your pet, and choose mutations that visibly changes its body. Each play is an evolution into a different pet.
Why similar: Incremental 25.1%, Idler 21.5%, Mining 12.7% ★, Relaxing 10.4%, Casual 6.1%
- #38 Popcorn Idle
74% matchNo user reviews
Dev: Sashify
Windows
Popcorn Idle is a cozy idle automation game about the simple joy of popping corn. Earn money, buy upgrades, automate and turn up the heat to boost production. Grow bigger numbers, unlock flavors and combine effects. Fill the whole machine with colorful, tasty popcorn, one crunchy pop at a time.
Why similar: Idler 24.5%, Incremental 19.3%, Capitalism 10%, Relaxing 9.2%, Cozy 6.2%
- #39 Imberite Idle
73% matchNo user reviews
Dev: Chnappi
Windows
Open chests, collect rare structures, and optimize your build to maximize production in this steampunk idle incremental game.
Why similar: Idler 22.2%, Incremental 18.2%, Capitalism 13.6%, Resource Management 7.6%, Relaxing 6.7%
- #40 Deep Sea Fish: Hidden World
72% matchMostly Positive76% of 50 reviews2026
Dev: Althea Games
Windows · Mac
A short incremental fishing game where you catch fish, earn gold, and unlock powerful upgrades to explore the deep sea.
Why similar: Incremental 20.3%, Idler 20.1%, Capitalism 11.9%, Economy 8.2%, Arcade 7.2%
- #41 Greenrise
73% matchNo user reviews2026
Dev: Crafted by Fuchs
Windows · Mac
Greenrise is a short and cozy incremental game about chopping wood, breaking stones and mining gold to buy upgrades and grow your island.
Why similar: Mining 27.8% ★, Idler 21.6%, Incremental 20.7%, Cozy 7.4%, Relaxing 6.2%
- #42 Click through Earth
73% matchNo user reviews2026
Dev: 271 games
Windows
Click Through Earth is a short, relaxing incremental game. Gain diamond and coins. Use them to unlock items and upgrade a versatile upgrade tree. Use your own combination of items to make super powerful attacks.
Why similar: Mining 27.6% ★, Incremental 21.4%, Relaxing 9%, Collectathon 6.3%, Economy 6%
- #43 A Game About Feeding A Black Hole
72% matchVery Positive89% of 3,295 reviews2025
Dev: AarimousPub: Aarimous and Thornity
Windows · Mac · Linux
Median: 3.8 hrsMean: 4.4 hrs≥1hr: 93%
A short incremental game about feeding a Black Hole matter by destroying Asteroids, Planets, and Stars.
Why similar: Incremental 33.6%, Idler 16.8%, Mining 12.4% ★, Relaxing 8.6%, Resource Management 4.6%
- #44 Oil Island Hustle
71% matchNo user reviews2026
Dev: Fishbump Games
Windows
An Empty Island, Full of Oil, and you're ON IT! Build your Oil Empire and Dominate the World Market! Create oil factories, produce oil barrels and sell them to different countries and earn Lots of Money! Hire workers to automate and remember to pay your 1 million loan to your co-worker
Why similar: Mining 23.1% ★, Idler 18.7%, Capitalism 16.8%, Incremental 14.8%, Economy 8.3%
- #45 Ore Legacy
71% matchNo user reviews
Dev: Keplerium Games
Windows
A retro CRT-style idle mining game set in deep space. Expand your station, automate extraction fleets, harvest stars, and pay down an impossible debt.
Why similar: Mining 22.2% ★, Idler 21.5%, Incremental 20.4%, Economy 11.3%, Relaxing 4.9%
- #46 AutoShowRoom
71% matchNo user reviews
Dev: haiooohai
Windows
AutoShowRoom is a small relaxing incremental game about managing your own car showroom! Collect +100 unique cars from 10 different countries! Tune them to perfection and showcase them in thrilling events! Unlock new models and expand your collection! Build the ulitimate car showroom!
Why similar: Idler 25.5%, Incremental 19.4%, Capitalism 12.7%, Economy 9.6%, Resource Management 5.8%
- #47 Trashy Cashy
69% matchNo user reviews67% of 116 reviews2026
Dev: Challenging Games
Windows
A short, 3-6-hour incremental game about building a business by selling trash. Become a partner in the mysterious "Trashy Cashy" franchise. Unpack trash, ship it off, and rake in outrageous profits. Don't ask too many questions. Sounds simple, right?
Why similar: Idler 22.7%, Incremental 21.7%, Capitalism 20.2%, Economy 11%, Relaxing 5%
- #48 MineEmAll
70% matchNo user reviews
Dev: James Castle
Windows
MineEmAll is a short incremental game about mining resources, buying powerful upgrades, and clearing out a constantly growing mineshaft.
Why similar: Mining 32.5% ★, Incremental 23.9%, Relaxing 8.7%, Casual 5.8%, Minimalist 5.7%
- #49 Far Mining
68% matchVery Positive95% of 351 reviews2026
Dev: LostVolBytes
Windows
Far Mining is a short and relaxing incremental game about mining asteroids. Mine resources, upgrade your ship, unlock new tools, and find your way out of deep space.
Why similar: Mining 33% ★, Incremental 23.3%, Idler 9.7%, Relaxing 9%, Arcade 6.9%
- #50 God of Stocks
70% matchNo user reviews2026
Dev: Obys Byte Games
Windows
An incremental management game about manipulating the market to get filthy rich. Buy low, sell high, chain absurd combos and earn divine blessings from stock market gods. Will you play it safe or risk everything?
Why similar: Idler 22.8%, Capitalism 22.2%, Incremental 20.9%, Economy 12.5%, Resource Management 4.4%
- #51 Rapid Miner
70% matchNo user reviews
Dev: HS Solution
Windows
Mine ores, upgrade your pickaxe, and race to hit the gold target! Rapid Miner combines fast-paced clicker mining with a desktop overlay Mini Mode. Clear stages for rewards, collect skins, and keep earning even while you work.
Why similar: Mining 26.6% ★, Idler 22.4%, Incremental 21.5%, Economy 11.6%, Relaxing 5.2%
- #52 Nova Fleet
69% matchNo user reviews2026
Dev: Limitless
Windows
A short incremental space game about building and expanding a mining fleet. Destroy asteroids, collect resources, and upgrade your ships to mine faster and extract more with every run.
Why similar: Idler 25.8%, Incremental 23.6%, Mining 21.4% ★, Casual 7.3%, Relaxing 5.6%
- #53 Artillery Miner
69% matchNo user reviews2026
Dev: Alextgr8
Windows
An incremental mining game, where you mine through massive blocks using guns, fire, lasers and nuclear missiles. Discover new ores, unlock new worlds and weapons as you progress through the upgrades tree and become the ultimate Artillery Miner!
Why similar: Mining 29.1% ★, Incremental 17.9%, Idler 17.5%, Economy 9.1%, Resource Management 6.3%
- #54 HarvestCo.
68% matchNo user reviews
Dev: Paper Lynx Games
Windows
HarvestCo is a farming incremental idle game where a small field turns into an increasingly efficient money-making machine. Harvest crops, buy upgrades, grow passive income, automate production, and discover rare golden crops and strange field events.
Why similar: Idler 18.3%, Incremental 16.6%, Capitalism 14.9%, Economy 8.1%, Relaxing 7.3%
- #55 What the Buck?!
68% matchNo user reviews2026
Dev: kohlgames
Windows · Mac · Linux
What the Buck?! is an incremental game about destroying money. Smash stacks of cash, upgrade your destructive power, discover game-changing skill tree upgrades, prestige and experience the dopamine of numbers exploding.
Why similar: Idler 21.1%, Capitalism 20.6%, Incremental 19.2%, Economy 11.2%, Resource Management 7.4%
- #56 Inkremental
67% matchNo user reviews2026
Dev: InkolorGames
Windows · Mac · Linux
Inkremental is a short incremental game about splattering paint across canvases by bursting blobs of color. Revisit iconic artworks with a humorous twist, unlock upgrades, and take down quirky mini‑bosses as you bring each masterpiece to life.
Why similar: Incremental 23.4%, Idler 18.9%, Mining 15.1% ★, Relaxing 10.7%, Casual 6.8%
- #57 IDLE: Intergalactic Defense League Exterminators
66% matchMostly Positive72% of 36 reviews2026
Dev: PolyB Games
Windows
An incremental game about blasting bugs, collecting guts, upgrading a base, and blasting more bugs!
Why similar: Idler 19%, Mining 18% ★, Incremental 17.5%, Relaxing 8.3%, Economy 7.8%
- #58 Smashing Bottles
67% matchNo user reviews2026
Dev: Blue Makes Games
Windows
Smashing Bottles is a short and satisfying incremental game where you break bottles to earn money, upgrade your bat, discover new bottles, and cause chaos! Will you smash enough bottles to buy the universe?
Why similar: Idler 24.4%, Incremental 22.8%, Economy 13.4%, Capitalism 9%, Relaxing 6.6%
- #59 A Moon Full of Money
67% matchNo user reviews2026
Dev: Blue Hand Interactive
Windows
Blast rocks, upgrade your base, and earn lots of money in this compact incremental game. Expand and automate your operation with powerful abilities like mining robots, drones, mines, supply drops, an orbital laser, and more.
Why similar: Mining 23.5% ★, Idler 22.7%, Incremental 21.7%, Relaxing 7.9%, Economy 6.2%
- #60 Babel Legacy
67% matchNo user reviews2026
Dev: Broken Toilet Games
Windows · Linux
An idle game where you gather resources and grow your city. Sit back and watch your city expand!
Why similar: Idler 24.6%, Incremental 23.1%, Mining 14.7% ★, Relaxing 9.1%, Casual 6.6%