Single-player games like Under the Ruin
Below are 8 single-player Steam games similar to Under the Ruin, 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 Under the Ruin page.
Ranked picks
- 1
Operative Division
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy and Indie with Under the Ruin.
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.
- 2
Nederfall
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Simulation with Under the Ruin.
The Netherlands has fallen. Lead your survivors on scavenging trips through the ruins, find resources, recruit more survivors, and come home to a camp to take care for. Survivors cook, craft, and train on their own. Every item you bring back makes your camp grow stronger.
- 3
Zombie Apocalypse - The Last Fortress
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy and Indie with Under the Ruin.
Defend your base against hordes of zombies while using a variety of weapons, vehicles, explosives, soldiers and turrets in this survival tower defense game. Will you be able to create your own strategy and survive for 30 days?
- 4
Zombie Apocalypse - The Last Defense
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy and Indie with Under the Ruin.
Create your own strategies, tactics and manage your resources in this survival tower defense game. Buy weapons, vehicles, explosives, soldiers, turrets and battle against huge waves of zombies. Can you survive for 25 days?
- 5
Super Special Squad
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy and Indie with Under the Ruin.
Super Special Squad - is a team management tower defense game set in post apocalypse world. Build up your squad, earn money and gather resources, upgrade your heroes, destroy hundreds of enemies and save our planet Earth yet another time.
- 6
Railhold
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy with Under the Ruin.
Build an armored train and defend it against relentless mutant hordes. Mount turrets, recruit crew and make every stop count in a top-down roguelite tower defense where your base never stops moving.
- 7
SideTower
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy with Under the Ruin.
A side-view tower offense game where you defeat enemy kingdoms to unlock new towers and weapons, reshape the battlefield, and fight alongside your troops to survive increasingly difficult waves. Chaotic and fast-paced. Fulfill your destiny.
- 8
Path to Catakombs
Single-player alternative to Under the Ruin — playable solo, no multiplayer required. Shares Strategy with Under the Ruin.
Build and defend an armored train through ever-changing underground routes. Recruit gunners, alchemists, and mechanics, upgrade your wagons, choose your path, and survive relentless kobold raids and colossal bosses.