Single-player games like Survivors Under Siege
Below are 8 single-player Steam games similar to Survivors Under Siege, 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 Survivors Under Siege page.
Ranked picks
- 1
Roots Of Ruin
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required. Shares Indie with Survivors Under Siege.
Build your defenses, fight beside them, and reclaim your kingdom from the corruption. Expand your land, command powerful towers, and take direct control of one of four unique heroes to defend against relentless enemy waves and devastating bosses.
- 2
Don't Mind the Robots
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required. Shares Indie with Survivors Under Siege.
Build deadly mazes and outsmart a rogue AI in this strategic tower defense game. Adapt your defenses, use aiming parameters to your advantage, and activate powerful perks to survive increasingly complex waves of incoming robots.
- 3
Rift Haul TD
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required. Shares Indie with Survivors Under Siege.
Build, upgrade, evolve, and reposition your towers to counter new threats, explore powerful synergies, and stay one step ahead in this fast-paced fantasy tower defense.
- 4
Final Outpost: Definitive Edition
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required.
Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?
- 5
YORG.io 3
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required. Shares Indie with Survivors Under Siege.
Defend, Attack, Survive! Build up your base and defeat the zombies with this unique combination of tower defense, base building and supply chain management. Now with multiplayer, mods and loads of new content!
- 6
They Are Billions
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 7
Frontline Crisis
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required.
Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis! A battlefield swarming with insects makes strategic and combat decisions crucial. Each decision will determine your fate. Defend humanity's last sanctuary, fight fiercely, and uphold human honor with wits and courage!
- 8
Door Kickers 2: Task Force North
Single-player alternative to Survivors Under Siege — playable solo, no multiplayer required. Shares Indie with Survivors Under Siege.
Command military Special Ops Teams in gripping tactical combat against a Middle East-based terrorist network. Sequel to RockPaperShotgun's "Best Tactics Game of 2014".