Single-player games like Syntherion
Below are 8 single-player Steam games similar to Syntherion, 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 Syntherion page.
Ranked picks
- 1
SPLATTER KING
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
Smash through horned demons as you plunge ever downward to save the Queen. The deeper you descend, the deadlier the enemies become. Only those strong enough to survive can reclaim their throne.
- 2
Watch Out: Shark!
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
Survive in the ocean by feeding on smaller fish, dodging predators, and facing various dangers in this relaxing, challenging, and super fun retro arcade game—all hand-drawn in pixel art style. Dive into this adventure solo or in multiplayer mode. But remember: watch out for the shark!
- 3
Blitloop
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
A fast-paced, side-scrolling retro shooter where you play as “Blit" on a mission to rescue orb pods. Blast enemy swarms and face off against bosses in this bullet-hell shoot 'em up. Earn power-ups and get ready for fluid arcade action in a stylish world with an 80s synthwave soundtrack.
- 4
Space Show edition 17
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
Space Show is an explosive space shoot’em up blending fast-paced arcade action with roguelite progression. Destroy waves of asteroids, battle enemy fleets, and defend Earth in an endless war where only survival… and glory matter!
- 5
Wolf Commando
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action with Syntherion.
An explosive 80s-inspired top-down military shooter where skill, guts, and firepower decide everything. Choose your route and fight for the highest score.
- 6
Paddle Legends
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
A chaotic roguelite twist on retro arcade action. Every run will test your reflexes and decision-making as you unlock new paddles with unique projectiles and conquer levels with a variety of modifiers and challenging foes.
- 7
Matchinko
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
Match glowing crystals to build a pachinko board, then rain your ball loadout through it for an exploding score. A cozy winter roguelite of fairies, tiles, and fate: light every town on the climb to the boss — but miss one target and the run is over.
- 8
SKY TOMB
Single-player alternative to Syntherion — playable solo, no multiplayer required. Shares Action and Indie with Syntherion.
Have you ever looked at a boss and felt "Damn, I wish I - the player - was that powerful." Look no further than the retro-styled dopamine-fueled time-deleting powertrip of SKY TOMB!