Open now · Join instantly
AGE OF ALIENS playtest
by MonkeyClimb Studio
On an alien world, you must defend yourself in this unique base-building tower-defense game. Build a base by placing blocks, turrets and traps in order to survive the hoards of aliens.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- May 8, 2026
- Planned release
- Coming soon
- Developer
- MonkeyClimb Studio
- Platforms
- Windows
- Players
- Single-player
- Languages
- English, French, German, Italian and 9 more
How to join the AGE OF ALIENS playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the AGE OF ALIENS playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
About AGE OF ALIENS
Stranded on a alien world, you must defend yourself until help arrives.
AGE OF ALIENS is a tower defense game where you:
- Build your own base
- Defend against alien waves
- Protect your survivors
Your goal is simple. To survive until rescue arrives.
Don't want to be rescued? Thats fine! In freeplay mode your mission is to simply survive as long as possible.
Features
- CHOOSE TOWERS: Blocks, Turrets, Traps, Machines
- DEFEND: survive waves of uniquely crafted aliens
- EXPERIMENT: Use sandbox mode for testing your defense
From the game's Steam page.





