Single-player games like Steam Marines 2
Below are 9 single-player Steam games similar to Steam Marines 2, 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 Steam Marines 2 page.
Ranked picks
- 1

Lost In The Open
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
An unexpected assassination attempt leaves you wounded and fleeing across no man's land. To survive in this roguelike, low-fantasy tactical RPG, you must recruit strategically, fight desperately and repent sincerely.
- 2

Rogue Fable IV
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
Storm the lair of the immortal wizard Yendor in this fast paced, turn based, traditional rogue-like. The massive scope, deep mechanics and challenging gameplay that define the genre distilled into dense and highly varied one hour runs.
- 3

Trash of the Titans
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
It's turn-based fantasy tactics with trash animals. Defend your trash from invading rats, and eat your trash to upgrade your team. Think your way out of ruin by using the shape of each level to your advantage. Be creative, and try to not die.
- 4

Templar Battleforce
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
An addictive mix of strategic combat and army building, with the precision of an RPG. Design your squad members' exact build of equipment and talents to create unique fireteam combinations. Step into the pilot suit of a Leviathan mech, lead the Templar Knights in turn-based tactical warfare.
- 5

The Hand of Merlin
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
The Hand of Merlin is a turn-based rogue-lite RPG in which Arthurian legend meets with sci-fi horror. Recruit mortal heroes to explore lands rife with otherworldly evil, make narrative bending choices in unique interactive encounters, and search for the lost fragments of your soul across the multiverse!
- 6

Depth of Extinction
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
Explore a flooded world and save humanity from a terrible threat in this turn based, tactical RPG with roguelike elements
- 7

Halcyon 6: Starbase Commander
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
Halcyon 6: Starbase Commander is a retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling.
- 8

MASSIVE CHALICE
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
MASSIVE CHALICE is a tactical strategy game set on an epic timeline from Double Fine Productions. As the Immortal Ruler of the nation, you'll take command of its heroes, forge heroic marriages to strengthen your Bloodlines, and battle a mysterious enemy known as the Cadence in a 300 year war.
- 9

Steam Marines
Single-player alternative to Steam Marines 2 — playable solo, no multiplayer required. Shares Strategy and Indie with Steam Marines 2.
Steam Marines is a squad based Roguelike set on a steampunk spaceship. It features tactical play focused on positioning and careful use of resources. Built to keep you on your toes as you progress through the decks of your besieged ship while clearing enemies and trying to reach each level's elevator.