Single-player games like TD Tower Defense
Below are 8 single-player Steam games similar to TD Tower 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 TD Tower Defense page.
Ranked picks
- 1

Door Kickers 2: Task Force North
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required. Shares Action with TD Tower Defense.
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".
- 2

Taur
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required. Shares Action with TD Tower Defense.
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
- 3

AI War 2
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required.
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.
- 4

Titanfall® 2
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required. Shares Action with TD Tower Defense.
Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.
- 5

ARMORED CORE™ VI FIRES OF RUBICON™
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required. Shares Action with TD Tower Defense.
A new action game based on the concept of the ARMORED CORE series that uses the knowledge gained from FromSoftware's recent action game development.
- 6

Nuclear Throne
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required. Shares Action with TD Tower Defense.
Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?
- 7

XCOM® 2
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required.
XCOM 2 is the sequel to XCOM: Enemy Unknown, the 2012 award-winning strategy game of the year. Earth has changed and is now under alien rule. Facing impossible odds you must rebuild XCOM, and ignite a global resistance to reclaim our world and save humanity.
- 8

Earth 2160
Single-player alternative to TD Tower Defense — playable solo, no multiplayer required.
After the destruction of the EARTH in 2150, the leaders of the Eurasian Dynasty escaped on board an evacuation fleet. Now they are fighting for the survival of the human species. Their base is one large building comprising of smaller variable parts.