Log in with your username to reliably save your game progress and achievements
About game
Ward off the relentless onslaught of enemies to protect the final habitable world. Take down adversaries and build up orbital defenses using the remnants of their ships — combine three units into one powerful structure: turrets, lasers, shields, stations, and even mighty citadels and arks. The more you progress, the more powerful your next attempt becomes: gems provide permanent enhancements. Experience planet defense, merging mechanics, and roguelite elements all in one game.
How to play
The planet is firing on itself — fortify the defenses! In the heat of battle, tap enemies for accurate shots, charge up the orbital strike and release it when the ring glows. Use your XP to enhance attack, defense, and economy.
In between waves, head to the shipyard: combine three matching debris pieces to create better items, and deploy high-tier buildings (level 3+) in orbit slots — turrets, lasers, shields, and stations will aid your defense. If an enemy ship lands, build up your garrison: spend gold to recruit troops and merge identical ones to create stronger fighters.
Survive 30 waves to secure the Frontier, then aim for higher scores in endless mode. Use gems for permanent upgrades and relics — each playthrough will be more powerful than the last.