Rust Spire is a 2D tower defense with a roguelite heart. In a sunset wasteland you assemble a tower out of rusty scrap: place blocks, weapons and rooms, then hold back waves of mutants and machines. The tower obeys physics — overloaded columns collapse spectacularly, crushing enemies under the rubble.
Every 1–2 waves is a decision: widen the base, add firepower, or reinforce the structure. In combat, active abilities share a single energy pool: orbital strike, repair, overdrive and an emergency brace.
3 biomes, 60 waves and an endless mode:
• The Wastes — learn the ropes
• Acid Marsh — corrosion eats your foundation
• Frozen Frontier — frost silences your guns
Bosses with signature set-pieces and smart enemies: flyers, shielded, siege. Between runs, level up the Workbench meta-tree and tune your loadout in the Arsenal. Death means progress — unlock counters to whatever killed you.
Daily challenge, leaderboards, and a pick-your-starting-biome mode. Mobile-first, playable one-handed.
How to play
Build phase: tap a module card at the bottom and place a block next to the core. Build up and out — weapons on the edges, modules for bonuses. Watch the load: overloaded columns will collapse.
Combat phase: press DEFEND — weapons fire on their own. Spend energy on abilities (blast, repair, overdrive, brace). Don't let enemies reach the core.
Between waves, adapt to the threat, repair and upgrade. After a run, level up the Workbench. Controls: single tap / mouse.