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Planetary Zigma playtest
by LucasDevelops, HaraldWik
A co-op roguelike shooter set on procedurally generated planets. Loot chests, stack items for epic builds, charge the teleporter, and defeat the boss before the planet beats you. Then take the portal to the next planet and do it all again, harder. Play alone or with friends.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Jul 23, 2026
- Planned release
- Coming soon
- Developer
- LucasDevelops, HaraldWik
- Platforms
- Windows, Linux
- Players
- Co-op, Multiplayer, Online co-op, Single-player
- Languages
- English
How to join the Planetary Zigma playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the Planetary Zigma 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 Planetary Zigma
FIGHT ON REAL SPHERICAL PLANETS
Each run creates a larger planet than the last. Enemies approach from all sides as the battle spans the entire sphere. There are no map borders, only terrain and the enemies beyond it.
STACK ITEMS
Open chests, grab items, and combine their effects. You can trigger chain lightning or gain powerful stat boosts. Every copy of an item makes it stronger. You will need this power because the planets only get harder.
CHARGE THE TELEPORTER
Find the teleporter and activate it. Doing so wakes up the boss. Kill the boss and charge the teleporter. Take the portal to the next planet, where everything hits harder.
PLAY SOLO OR CO-OP
Take on the planets alone or with friends in online co-op over Steam.
From the game's Steam page.
