Single-player games like Infernal Radiation
Below are 12 single-player Steam games similar to Infernal Radiation, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Infernal Radiation page.
Ranked picks
- 1
Cuphead
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Cuphead is a classic run and gun action game heavily focused on boss battles. Inspired by cartoons of the 1930s, the visuals and audio are painstakingly created with the same techniques of the era, i.e. traditional hand drawn cel animation, watercolor backgrounds, and original jazz recordings.
- 2
Deathsmiles
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Deathsmiles is CAVE's bullet-hell shoot-'em-up where you take the role of one of five Angels to defend the magical land of Gilverado from an invasion by Hell itself! Eradicate this devilish assault!
- 3
The Bug Butcher
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
A fast paced action shooter inspired by the arcade classic Super Pang! Use a wide selection of weapons and powerups to tear through increasingly challenging levels.
- 4
ONE BTN BOSSES
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
It's One Button Bosses, it's all in the name. You have one button. There are big bosses to beat. Push, tap, and bash in the handcrafted campaign or in the roguelike rifts.
- 5
Nex Machina
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Nex Machina is an intense arcade style twin-stick shooter from Housemarque. Taking hints from both Robotron and Smash TV, Nex Machina focuses on pure action, voxel destruction and competition in the distant, cablepunk themed future.
- 6
Super Hydorah
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Super Hydorah is a nonlinear horizontal shoot’ em up designed to offer a challenging experience, sublimating the richness of traditional shmup classics. Face the menace of the Meroptians aboard the Delta Lance, alone or with your friends in this game with direct action and nostalgic art.
- 7
Assault Android Cactus+
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.
- 8
Crimzon Clover WORLD IGNITION
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Prepare yourself for an insatiable rain of bullets, bombs, and beams in Crimzon Clover. From Japanese indie developer Yotsubane, this retro top-down shooter is a wild ride you won't want to miss out on.
- 9
Undertale
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Indie and RPG with Infernal Radiation.
UNDERTALE! The RPG game where you don't have to destroy anyone.
- 10
Priest Simulator: Vampire Show
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
A mockumental action game. Go forth and rock in the absolute weirdest and most messed up simulator in the history of sandbox shooters. Fully unprofessional English language version. This dub will have you in stitches.
- 11
Ultimate Summer
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Simulation with Infernal Radiation.
A mix of tower defense with classic shooter. Gather resources, place traps, build towers, and buy weapons to exterminate waves of United Forces of Heaven, Hell, Purgatory, Cthulhu, Carnivores and Aliens.
- 12
Booze Masters: Freezing Moonshine
Single-player alternative to Infernal Radiation — playable solo, no multiplayer required. Shares Action and Indie with Infernal Radiation.
Freezing Moonshine is a unsettling first-person adventure game with elements of plant cultivation, puzzles, and lots of high-proof beverages. To survive, you'll need to gather harvests, take photos, and craft a wide variety of spirits.