Biletide

Biletide is a tower-defence strategy game about protecting a distant mining colony from a rising, toxic flood. The colonists awaken the living Biletide when they breach the ground. You gather resources, reshape the 3D voxel terrain and build defences to hold back the tide and seal its breaches.

Shape the battlefield

Dig into the terrain for resources, but each building and raised tile costs materials. Digging too deep can create riverbeds that guide the Biletide towards your base. Since it flows towards the lowest ground, you can also dig channels and reshape the land to divert it.

Build your defences

Fire is the only way to push back the Biletide. You build plasma flamethrower towers to defend key choke points and fight towards the breaches, while using other defences to block or redirect the flood. Some buildings need power, so you must protect your power lines from being surrounded.

Burning the Biletide releases toxic smog that can suffocate your solar panels, adding pollution to the colony’s resource and defence challenges.

Campaign and custom levels

The campaign follows colonists trying to survive on a doomed mining colony. Each mission brings new pressures and harder choices as the Biletide spreads further across the planet.

You can also use the built-in level editor to place terrain, buildings and the Biletide in your own missions. Share levels through the Steam Workshop or play levels made by other players.