Single-player games like City Defense
Below are 11 single-player Steam games similar to City Defense, 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 City Defense page.
Ranked picks
- 1
Loop Defense: Acquisition Protocol
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
Loop Defense is a single-player sci-fi tower defense game. Build enemy routes with base walls, assemble a modular defense, manage limited loadouts, energy, and research, face armored, flying, carrier, and wall-breaker units across a star map, or challenge Endless Mode.
- 2
Our War: The Strongest Shield
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy with City Defense.
A grand and intense tower defense science fiction game, where you only need to purchase once to enjoy all the content of the game.
- 3
Permanence TD
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
Tower defense that will make you think
- 4
Sunbreak War
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
A light Rogue strategy game centered on building and defense. Build your territory, recruit soldiers to fend off enemies. 9 maps, 6 weapons (30 talents), 40 monsters, 30 units/buildings. Plan your pace, control soldiers, choose abilities—enjoy command and strategy.
- 5
SkyInFlames
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy with City Defense.
Command drones, deploy mobile air defense systems and conduct tactical aerial operations. Choose your side - Ukrainian or Russian forces - and protect critical infrastructure in a realistic military simulation on a detailed map.
- 6
Creeper World 4
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.
- 7
ReEarth
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
ReEarth is an exciting TD & (RTS) indie game. Here, you will play as humanity's last hope. You will fend off the oncoming swarms by continuously building your base and dispatching various types of units. Prepare for the challenge and save the future of humanity!
- 8
Silent Shark
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Strategy and Indie with City Defense.
A tactical, map-based WWII submarine sim set in the Pacific Theater: Approach, intercept, strike unseen, withdraw into the deep. With realistic instruments, a Torpedo Data Computer (TDC), and including a full campaign with missions, patrol zones, radio intel, and more.
- 9
Judas
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Indie with City Defense.
Judas is an atmospheric psychological horror experience. Accidentally trapped in an apartment complex, you face dark paranormal events that push you to escape as fast as possible; yet, fleeing is not an option.
- 10
15 seconds
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Indie with City Defense.
15 Seconds is a 2d arcade in which you have to move forward, take down obstacles, avoid shots in the search for an exit, but remember that your time is limited. in no case do not touch anything, otherwise you will have to start all over again.
- 11
One Way To Exit 2
Single-player alternative to City Defense — playable solo, no multiplayer required. Shares Indie with City Defense.
Move forward or backward in search of an exit, but remember: if you start moving, you will not be able to stop. Take bonuses, destroy obstacles and bosses, but in no case touch them or the walls, otherwise you will have to start from the beginning.