IRON BASTION

Twenty levels. One tank. No retreat.

Controls

Move: WASD or left joystick
Aim turret: Arrow keys or right joystick
Fire: Space or red button
You cannot aim and fire at the same time — line up your shot, then pull the trigger.

Survive

You start with 3 ammo. Crates give +5. Killed enemies often drop ammo too.
Ammo slowly regenerates (+1 every 5s, up to 6) — you're never fully starved.
Pick up health, shields, rapid-fire, damage, and speed boosts on the battlefield.
Mines explode on contact. Shoot them from range.
Defeat all enemies in each level to advance. Boss tanks at levels 10 and 20.