Single-player games like The Outpost: Outer Frontier
Below are 10 single-player Steam games similar to The Outpost: Outer Frontier, 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 The Outpost: Outer Frontier page.
Ranked picks
- 1

Millennium Conflict
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
You are the last survivor. Capture towers, command a squad of unique generals, and battle through 40 missions across 10 distinct worlds as you fight to reclaim a universe that has fallen to the enemy.
- 2

Operative Division
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
Command your forces from above or take direct control on the ground. Operative Division is an intense RTS-TPS hybrid set in a post-apocalyptic world. Manage finite resources, execute surgical tactical maneuvers, and unleash devastating superweapons in a battle for humanity's future.
- 3

Phosphor Command
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
You command a forward operating base in a world ravaged by war and shadow contracts. Deploy squads into real-time tactical combat, research upgrades, manage a fragile economy, and push back a front that never stops advancing.
- 4

Ashfall Command
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
Build and defend your base, plan coordinated strikes, and command your forces in a cinematic real-time strategy game focused on tactical decisions over constant micromanagement.
- 5

Soul Tides
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy with The Outpost: Outer Frontier.
Command dark armies in this tug-of-war auto-battler. Build your base, summon units, customize abilities, and push the battlefield toward your enemy’s stronghold. Adapt your strategy each match and dominate in PvP, co-op, or Trials mode.
- 6

Ashes of the Singularity II
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy with The Outpost: Outer Frontier.
In this massive RTS game, command vast armies fighting for control of entire worlds. Control the forces of Earth, the mechanical AI Substrate, or the enigmatic Post-Human Coalition as you battle across the solar system in single player, cooperative multiplayer, or competitive multiplayer.
- 7

IRON GUARD: Salvation
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy with The Outpost: Outer Frontier.
Defend humanity in IRON GUARD: Salvation. Build and upgrade turrets, support your heroes, and personally join the fight with your drone’s firepower against relentless machines.
- 8

Mechs & Mercs: Black Talons
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
You are the commander of the Black Talons company, currently stationed in the Oberon system. After an eventful campaign, the military Tzanar Union has overrun the planet of Genai and blocked all departure from the system: leaving you and the Black Talons stranded.
- 9

Classic Tower Defense 2
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
Classic tower defense rules meet modern systems. Build medieval towers, face adaptive waves, and experiment with upgrades, modifiers, and roguelike progression.
- 10

Cyber Classics Collection
Single-player alternative to The Outpost: Outer Frontier — playable solo, no multiplayer required. Shares Strategy and Indie with The Outpost: Outer Frontier.
A growing cyberpunk collection of classic card, board, puzzle and arcade games plus local duels — each rebuilt as a clean, responsive game table with bots, rule variants and a shared neon interface.