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A fast-paced retro shoot-'em-up featuring evolving weapons, intense arcade combat and massive bosses — from one-man studio Psychotic Psoftware.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
POWER-UP is a fast-paced retro-style shoot-'em-up from one-man studio Psychotic Psoftware, blending classic arcade action with a tactical weapon progression system.
Inspired by legendary SHMUPs like R-Type, Hellfire, and Project-X, Power-Up delivers intense side-scrolling battles, massive bosses and a devastating arsenal of evolving weapons.
Pilot the experimental fighter Weapon-F through the wreckage of humanity’s last escape attempt and strike back against the reptilian invaders who destroyed Earth.
You are the last human alive.
Your mission is simple.
Revenge.
• Classic side-scrolling arcade shoot-'em-up gameplay
• Weapon evolution system – upgrade and transform your arsenal mid-battle
• Huge screen-filling bosses and challenging enemy formations
• Multiple weapons and tactical loadouts
• Vibrant retro-inspired visuals
• A powerful original soundtrack
The Earth has fallen.
As the pilot of the prototype fighter Weapon-F, you emerge from the shattered debris of humanity’s final escape shuttle.
The reptilian war fleet that wiped out mankind still occupies the stars.
Against impossible odds, you launch one final counter-attack.
Humanity is gone.
But the war isn’t over.
