Open now · By request
Moongrave playtest
by Mendez Guillaume, Silvestre Jonathan
Defend a mysterious lunar crystal against relentless hordes in this roguelite tower defense. Build powerful defenses, cast devastating spells, gather resources, and rebuild humanity's underground city between runs.
It's free to ask. The developer chooses who gets in.
- Access
- By request
- On playtest since
- May 30, 2026
- Planned release
- Nov 16, 2026
- Developer
- Mendez Guillaume, Silvestre Jonathan
- Platforms
- Windows, Linux
- Players
- Single-player
- Languages
- English, French
How to join the Moongrave playtest
- Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
- Request access to the Moongrave playtest there. It's free and doesn't commit you to anything.
- The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.
New to playtests? How Steam playtests work
About Moongrave
DEFEND THE LUNAR CRYSTAL
The Moon has fallen.
Humanity has survived by retreating deep beneath the surface, but the world above is far from dead. A mysterious lunar crystal can still reach the surface — and it may be humanity's only chance to reclaim what was lost.
Take the crystal into hostile lands and defend it against relentless waves of monsters.
Build your defenses. Cast powerful spells. Adapt your strategy. Survive as long as you can.
BUILD YOUR ULTIMATE DEFENSE
Enemies can attack from every direction.
Place and upgrade your defenses around the crystal, choose the right abilities, and adapt to the threats you encounter during each expedition.
Every decision matters. A defense that is highly effective against one enemy may leave you vulnerable to another.
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MASTER SPELLS AND CREATE SYNERGIES\
Combine powerful spells, upgrades and defensive abilities to create your own playstyle.
Experiment with different combinations and discover builds capable of turning an overwhelming enemy wave into a devastating counterattack.
FIGHT THROUGH WAVES AND BOSSES
The longer you survive, the more dangerous the surface becomes.
Face increasingly powerful enemies, dangerous abilities and formidable bosses as you push your crystal further into the unknown.
Every wave puts your build to the test.
REBUILD HUMANITY BELOW THE SURFACE
Surviving an expedition is only the beginning.
Gather precious resources on the surface and bring them back to your underground city.
Rebuild and upgrade your buildings, unlock new possibilities and strengthen your future expeditions.
Your city grows after every expedition.
A ROGUELITE JOURNEY
Every run is an opportunity to experiment, adapt and become stronger.
Choose your upgrades. Discover new combinations. Learn from your defeats. Push further on your next expedition.
The surface is unforgiving.
How far can you take the crystal?
From the game's Steam page.
