CENIZA — Protocolo ARK
Steel, ash and a reactor worth defending. Build your defenses across a ruined industrial station, bend the enemy route around your weapons and fight to keep ARK's energy out of machine hands.

The route is your first weapon

Place towers and blocking platforms on the grid to shape the enemy's journey. Turn open ground into a winding firing lane, keep a path to the reactor and make every stretch of it work for you. Build and upgrade during combat; between waves, reclaim part of your tower investment and rethink the layout.

The breach is only half the battle

An enemy reaching ARK steals an energy core and heads back for the exit. Destroy the carrier and its core drifts home—but another machine can intercept it and turn to escape. Your defenses must cover the return journey as well as the approach. Every recovered core keeps the reactor burning.

Build a defense that works together

Seven tower families offer rapid fire, electricity, long-range precision, slowing ice, missiles, siege cannonballs and lingering fire. Each has three levels with visible upgrades. Match weapons to shields and armor, hold crowds inside your firing zones and reserve your heaviest shots for bosses.

Credits buy more than firepower. Invest in a refinery for income during waves, or a repair hangar whose flying drones restore damaged towers. There is a cost to giving industry room on the board—and to leaving it out.

Hold the line through 100 waves

Face fast swarms, shielded machines, armored walkers and mobile furnaces. The campaign changes formations as its enemies grow stronger, while earlier bosses can return as reinforcements or unexpected visitors.

Ten distinct robotic bosses culminate in a final procession at wave 100. IGNIS, a giant mechanical dragon, burns your defenses and gathers every remaining core before trying to escape. Between waves, take up to 50 seconds to prepare or launch the next assault early. Use normal speed, ×2 or ×4 when your plan is in place.

There's room for your ideas, too

We'd love to see what you'd do with CENIZA. That's why we've put together an SDK with documentation, templates, examples and tools to check your mods. Add maps, towers, enemies, bosses and game modes, or use code to change behaviors, environments and parts of the interface.

You can work on your own or get help from an AI assistant that can write code and use Blender to create models and animations. The SDK's documentation and structure are designed to make either approach easier. You don't have to use a particular AI tool, or any AI at all.

Give the SDK to GPT-6 Astra or your preferred AI assistant and ask it for a spectacular turret, a map unlike any other or a monstrous enemy. Try it in the game, tweak what needs work and share it.

CENIZA is being developed with AI tools under human creative direction. You don't need an AI account or subscription to play or use the SDK.

Here are three mods to give you an idea of what's possible:

MANUS puts the battlefield in the palm of a giant robotic hand. Enemies enter and leave through its wrist, while one of its fingers moves slowly beside the grid.


CISMA adds a long-range tower built to break through shields. It takes up four tiles and changes its appearance with each of its three upgrade levels.


BLACK SKY replaces the campaign with ten boss waves: four copies in every assault. You start with 20,000 credits and earn another 10,000 for each wave you beat. Choose your map and use the compatible towers you have installed, including those from other mods. If a boss escapes, you lose the run.

For the final wave, the mod adds a boss of its own: HARBINGER, a robotic bomber that flies above the route and opens its bays to drop bombs on your towers. What you see here is running in the game.


If you have an idea for an unusual map, an over-the-top tower or a mode that changes the rules, give it a go. Make your own version of CENIZA and share it on Steam Workshop. We'd love to see where you take it.

Think no AI can match your creativity? Prove it. Build your mod, share it on Workshop and put AI to shame.