Single-player games like Fission Superstar X
Below are 8 single-player Steam games similar to Fission Superstar X, 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 Fission Superstar X page.
Ranked picks
- 1

Space Mercenary Defense Force
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Defend against the alien invasion and take down the mother ship! Utilise branching upgrade trees, unlock new ships, and equip permanent upgrades to create your own unique build and defeat the growing hordes of invaders in this sci-fi action roguelike!
- 2

Death Skid Marks
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Death Skid Marks is a rogue-like car combat game about what so many of us have experienced: a road trip to a music gig… only in this game, things get violent. The game uniquely blends top down arcade action and RPG mechanics.
- 3

Rustwing
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Rustwing is a twin stick shooter roguelike, set in the distant future. Navigate from star to star, battle the scattered factions of humanity, discover strange anomalies, customize your weaponry, acquire powerful upgrades and become a legendary pilot!
- 4

Space Grunts
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
A turn-based game on a planet outpost - with no waiting between turns! Play it at the speed of an arcade game, or take your time and think about your next step.. no matter how fast you take your turn, it might be your last!
- 5

Legend of Dungeon
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Legend of Dungeon is a randomly generated action RPG Beat'em'up with heavy Rogue-like elements, striking visuals, and dynamic music.
- 6

Teleglitch: Die More Edition
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
In a cold, dark future dominated by mega-corporations, a small lonely planet on the edge of habitable space is the site of a shadowy research facility specializing in necrotic tissue reactivation. You are a scientist who has suddenly awoken to the realization that you are the lone survivor.
- 7

Immortal Redneck
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Immortal Redneck is a FPS set in Egypt with rogue-lite elements. Frantic gameplay, twitch controls and an arcade-style feel meet randomly generated dungeons, a complete skill tree, permanent death and 9 classes with different traits.
- 8

Hades
Single-player alternative to Fission Superstar X — playable solo, no multiplayer required. Shares Action and Indie with Fission Superstar X.
Defy the god of the dead as you hack and slash out of the Underworld in this rogue-like dungeon crawler from the creators of Bastion, Transistor, and Pyre.