Single-player games like Magnus Onus
Below are 8 single-player Steam games similar to Magnus Onus, 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 Magnus Onus page.
Ranked picks
- 1

Decksplorers: Into the Shell
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares Action with Magnus Onus.
Dive into the world of Decksplorers: Into the Shell, where deckbuilding card combat meets real-time action in a thrilling roguelite adventure! Master the art of strategic card play, swift reflexes, and exploration as you venture into the mysterious ever-changing caves of "The shell"
- 2

Grim Path
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares RPG with Magnus Onus.
A roguelike card crawler where every step is a choice. Descend into dark dungeons, battle monsters, and face various encounters. Choose your gear wisely to survive and go even deeper.
- 3

Bibidi Bibidi!
Single-player alternative to Magnus Onus — playable solo, no multiplayer required.
Bibidi Bibidi! is a whimsical deckbuilder where your wizard shouts whatever spell you conjure up. Every card has 3 components that you combine in your spellbook for unique effects. Mix and match incantations like sim-sala-bim and abra-kadabra to zap your way through a dungeon filled with monsters.
- 4

Soulsworn
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares RPG with Magnus Onus.
A Yu-Gi-Oh!-inspired roguelike where you fuse any two monsters and create your own custom cards. No mana, no restrictions: combo off, break boards, and OTK your way out of hell.
- 5

灵韵牌:清浊之间
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares Action with Magnus Onus.
Each additional card you chain makes your next strike hit even harder! Lingyun Cards: Between the Clear and the Turbid – an Eastern fantasy roguelite deckbuilder. Dive into mist-shrouded spirit realms, match wits with restless spirit beasts, counter their every move, and cut your way through!
- 6

Oiran Survival: Edo Yokai Rush
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares Action and RPG with Magnus Onus.
Defeat, choose, grow, and break the battlefield. A Japanese dark fantasy survivor-style roguelite where you Limit Break 14 skills and cut down hordes of yokai. Defeat bosses, forge gear from their rewards, and face even stronger foes.
- 7

Miners in the Mountain
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares RPG with Magnus Onus.
“Miners in the Mountain” is a pixel card RPG with Tarkov-like survival. Fight, loot, and build bases in collapsing mines. Failure will cost you everything—food, components, crew members, all vanishes. Meet allies and foes, build your expedition squad deck, dig deeper, and find the Mountain's Heart.
- 8

Noctiria
Single-player alternative to Magnus Onus — playable solo, no multiplayer required. Shares RPG with Magnus Onus.
Noctiria is a horror roguelite deckbuilder set in a decaying 1990s city. Choose one of six heroes, combine brutal status effects, manage your Sanity and consumable relics, and permanently upgrade your arsenal between descents.