
Acid Planet
Acid Planet is a caustic blend of horde-survival, tower-defense and strategy. Build, fight and evolve to survive against rampaging swarms of monsters and fearsome Kaiju.
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What are keyshops?About Acid Planet
AUTOMATED MESSAGE /// On the Acid Planet, human beings have been all but wiped out. Hordes of bio-monsters run wild and have grown to colossal size. The largest of these beasts are known as Kaiju.
You are a clone in the service of SCAV Corporation, welcome! You will conduct Kaiju salvage operations from our orbital station.
Use your automatic defense systems, personal weaponry and drones to repel the swarm until the Kaiju arrives. Your only priority is the capture of the Kaiju cores. You will be re-cloned as required. Good luck! /// END MESSAGE
BUILD THE ULTIMATE DEFENSE
Construct towers and drone factories to defend your ship from the horde. Make use of the environment - strategic placement matters. Balance weaponry and defensive structures against developing your upgrades and economy.SURVIVE THE DESERT
Move your crew member to help your auto-shooting defenses fight back swarms of enemies. Between waves, meet the denizens of the desert in risk/reward encounters. Survive long enough and you'll face the massive boss Kaiju, each one with unique and devastating abilities.EVOLVE TO PERFECTION
Choose a powerful new ability or upgrade after every wave. Evolve your weapons and towers into strange new forms. Use recovered Kaiju cores to boost your abilities between runs.FEATURES
- Action Tower-Defense gameplay with RTS and roguelite elements
- Over 50 unique perks, buildings and weapons
- Build structures, control your hero and command armies of drones
- Fight through 7 missions of controlled chaos, each with unique Kaiju bosses
- Post-run meta-progression with 25+ unlockable items
- Lovingly hand-drawn pixel art graphics
- Original soundtrack by Cletus Lupus
NEW IN 0.80!
- Added Hotshot and Freak difficulties! Use the freak stars to dial it all the way up.
- New Encounters mechanic! Meet some of the strange denizens of the desert, with their own risks and rewards.
- New perks and stats! Master weapon sub-types, hoard ship back-ups and turtle in with the new Shield Charger support tower.
Acid Planet is best enjoyed with keyboard + mouse, and gamepads are also supported.
Game details
Game details
Age ratings
Game modes
Languages
Acid Planet price history
Lowest tracked price: £0.62 (Jul 7, 2026) · current best: £2.49.
Acid Planet player count & reviews
80% positive reviews all-time · 1 peak players in the last 30 days.
Acid Planet — frequently asked questions
Where can I buy Acid Planet at the cheapest price?
Right now the cheapest offer for Acid Planet is £2.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Acid Planet has ever been?
The lowest price KingsPrice has tracked for Acid Planet is £0.62 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Acid Planet?
Acid Planet peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.
How can I get Acid Planet at a discount?
Create a free price alert on this page and KingsPrice will email you when Acid Planet drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS: Windows 10
- Processor: Intel i5
- Memory: 8 GB RAM
- Graphics: Almost any graphics card
- Storage: 250 MB available space
- Sound Card: any
- VR Support: n/a
Recommended
- OS: Windows 10
- Processor: Intel i7
- Memory: 16 GB RAM
- Graphics: Slightly better graphics card
- Storage: 250 MB available space
- Sound Card: any
- VR Support: n/a












