Single-player games like Outlive 25
Below are 8 single-player Steam games similar to Outlive 25, 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 Outlive 25 page.
Ranked picks
- 1
Stronghold Crusader: Definitive Edition
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy and Simulation with Outlive 25.
Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.
- 2
Solar Kingdoms: Human Survival
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Action and Strategy with Outlive 25.
Solar Kingdoms is a real-time strategy game where you command forces across solar systems, engaging in large battles both in space and on the surfaces planets. Establish colonies, find resources and artifacts, and fight up to 8 factions in skirmish, large campaign, missions, and multiplayer.
- 3
Stellar Shipyard
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy and Simulation with Outlive 25.
Stellar Shipyard is a space colony sandbox where you design modular ships and stations, and automate resource production using drones and workers. Let the automated systems fly even the most improvised designs. Face rival factions and threats solo, or alongside friends as allies or rivals.
- 4
Riftborne
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy and Simulation with Outlive 25.
Riftborne is a classic terminal based, real time, grand strategy game. Construct space ships. Take part in factional warfare. Hire galactic hit-men on your rivals. Raid neighbors for rare resources. Train spies to infiltrate enemy bases for key intel. Grow your empire to dominate the galaxy.
- 5
ZeroSpace
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Action and Strategy with Outlive 25.
ZeroSpace is a sci-fi hybrid RTS game with a story-rich, party-based RPG campaign. As commander of the Protectorate forces, you must upgrade your mothership, build strong relationships with your crew and recruit a formidable army. Navigate the hard choices that will shape humanity's future.
- 6
Stronghold Crusader HD (2012)
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy and Simulation with Outlive 25.
The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.
- 7
Red Chaos - The Strict Order
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy with Outlive 25.
The last world war didn't end conflict. The Iron Hand tyrannizes people, as the Resistance fights for liberation. In the resulting conflict high tech and brute force face off against guerrillas with unconventional tactics, leading to Red Chaos: A modern take on classic real-time strategy games.
- 8
Northgard: Definitive Edition
Single-player alternative to Outlive 25 — playable solo, no multiplayer required. Shares Strategy and Simulation with Outlive 25.
Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!