Single-player games like Forts
Below are 9 single-player Steam games similar to Forts, 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 Forts page.
Ranked picks
- 1
Guns, Blocks, and Steel
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Action and Indie with Forts.
A tactical multiplayer FPS created by a solo developer as a passion project. Featuring a fully destructible, block-based environment. Gather resources to produce weapons, ammo, and vehicles. Play multiplayer PVP/co-op or singleplayer with bots.
- 2
Cold Response
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Action with Forts.
Explore and survive a war torn Sweden through the eyes of an unknown soldier, alone or with friends.
- 3
Lost Existence
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Action and Indie with Forts.
Explore vast, forgotten lands, cryptic abandoned ruins, and mysterious caverns, in this open-world voxel action-RPG. Create your own uniquely crafted class. Build multiplayer dungeon, PvP, or siege experiences. Run, vault, and leap effortlessly across endless wilderness, or delve deep underground.
- 4
Arma 3
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Action and Strategy with Forts.
Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.
- 5
Halo Wars: Definitive Edition
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Strategy with Forts.
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
- 6
Sins of a Solar Empire: Trinity®
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Strategy and Indie with Forts.
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
- 7
A Total War Saga: FALL OF THE SAMURAI
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Strategy with Forts.
Experience the dramatic conflict of samurai culture and modern weaponry between the Imperial throne and the last Shogunate in 19th century Japan.
- 8
Men of War: Assault Squad 2
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Action and Strategy with Forts.
Men of War: Assault Squad 2 expands the real-time tactics series with new skirmish missions, massive multiplayer battles, enhanced visuals, improved AI, and full Direct Control. Command five factions across 65 maps, 250 vehicles, and 200 soldiers in one of the most detailed WWII RTS experiences.
- 9
Worms
Single-player alternative to Forts — playable solo, no multiplayer required. Shares Strategy with Forts.
Throw a grenade down memory lane with the original and classic turn-based strategy game Worms™! Up to 4 teams of worms do battle over an ever-changing battlefield with falling weapon crates, crazed exploding sheep and more besides. Winner of many industry awards, find out what all the fuss was about.