Single-player games like One Troll Army
Below are 10 single-player Steam games similar to One Troll Army, 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 One Troll Army page.
Ranked picks
- 1
Orcs Must Die! Unchained
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy with One Troll Army.
Orcs Must Die! Unchained takes the award-winning Orcs Must Die! action tower defense game to a whole new level with team-based gameplay! Bust skulls with your best pals in PvE co-op Survival, or put your teamwork to the real test in Sabotage Mode!
- 2
Orcs Must Die!
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment.
- 3
No Heroes Here
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
No Heroes Here is a frantic co-op game for 1 to 4 players, available in local and online modes. Craft and use several items effectively whilst coordinating your ragtag band of non-heroes to defend castles and survive! ...Oh, as well as saving the Kingdom in the meantime!
- 4
Prime World: Defenders
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.
- 5
Dungeon Defenders Eternity
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Dungeon Defenders Eternity is the definitive version of the original tower defense action-RPG! Now featuring a rebalanced endgame, all new missions, secure online play, links to Dungeon Defenders II and more!
- 6
CastleStorm
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Welcome to the world of CastleStorm, a super genre mashup of 2D physics destruction mashed with tower defense brawler! CastleStorm was born out of the fond childhood memory of building and destroying LEGO castles.
- 7
Sanctum
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
- 8
Lock's Quest
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Build Defenses and Battle against the Clockwork horde in this 2D Action RPG / Tower Defense hybrid. Experience a gripping story, which unfolds as you progress through 75 Days of warfare, aided by a collection of turrets, traps and special attacks.
- 9
Decision: Red Daze
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
Decision: Red Daze is an action RPG with a unique mix of survival and tower defense mechanics. Explore an apocalyptic wasteland, build a safe haven, and lead your team of specialists in a hopeless world, searching for a cure for the infectious disease that turns people into monsters.
- 10
Decision Legacy Collection
Single-player alternative to One Troll Army — playable solo, no multiplayer required. Shares Strategy and Indie with One Troll Army.
All the games in the classic Decision series bundled together. From the zombie-ravaged streets of the original Decision to the brutal medieval battlegrounds of Decision Medieval, this collection delivers the raw, blood-soaked combat, base building, and survival gameplay that hooked Flash game fans.