Single-player games like Defendion
Below are 16 single-player Steam games similar to Defendion, 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 Defendion page.
Ranked picks
- 1

Tiny Archers VR
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Indie and Casual with Defendion.
Draw your bow and defend your kingdom in this immersive VR tower defense archery game! Step into the role of the realm's finest archer as you face waves of attacks from cunning goblins and ruthless orcs. Test your skills, compete on leaderboards, and be part of the evolving community!
- 2

Hex Defense
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Casual with Defendion.
Hex Defense is a virtual reality tower defense game. Engage in combat defending your base in this inmersive tabletop world. Setup your defenses, manage and modify them according to the situation. There are 6 different biomes to defend, 9 turrets to access, 17 upgrades to be made, and more...
- 3

Now There Be Goblins: Tower Defense VR
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Fight off hordes of goblins in this VR smack and smash tower defense hybrid! Punish the invading goblins by using your mighty chained hammer and your wide arsenal of traps and structures.
- 4

Kings Archer VR
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
In this atmospheric world dominated by darkness and snowstorms, you stand on the walls of a massive fortress, the kingdom's last line of defense.
- 5

Defender Of Falyndor
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Defender OF Falyndor is a First-Person Tower Defense game in Virtual Reality! Take control of your character, towers, and much more to protect Falyndor from waves of invasions to become the ultimate Defender of Falyndor!
- 6

Captain ToonHead vs the Punks from Outer Space
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Ever wanted to beat a T-Rex up with a chancla, while building powerful towers that shoot piñatas, hot sauce and heat-seeking fireworks? Captain ToonHead is the VR tower defense game of your cartooniest dreams.
- 7

Skyland Defense
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Defend your skyland! Grab a tower and fight off the pirates. Build traps to slow down their march. Construct utility buildings and expand your village. Play alone or join your friends in this in-depth strategy and tower defense game!
- 8

Project RTD: Random Tower Defense VR
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy with Defendion.
Experience 'Project Random Tower Defense' in virtual reality! Project RTD (Random Tower Defense) VR is a random defense game. Defend your Crystal from monsters invading upper and lower ground of the map! Three-dimensional vertical map created for VR only will make you fully immersed into the game.
- 9

Robby's Adventure
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Indie with Defendion.
Robby came to us from another planet and managed to get a real friend. The boy liked to play with Robby very much but once the misfortune happened - Robby was broken. Boy's parents gave the toy for repair and then our adventure begins.
- 10

Fly Destroyer
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Casual with Defendion.
Do you hate flies? Then this game is for you! Flies .. they are everywhere! Arm yourself and destroy them all!
- 11

Bunny Minesweeper
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Multiplayer in Minesweeper? Yes! Play with your friends or random party in classic Minesweeper or try crazy challenging modes! Fun and hard simultaneously!
- 12

Bunny Mahjo
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Classic Mahjong Solitaire is not single-player game anymore. You can play with friends in 3d-environment. Play together, win together, unlock more figures together.
- 13

Bunny Parking
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Unusual 3d parking puzzle with kicking mechanics. Kicking is fun! Kick a car from the parking lot alone or with friends. And don't think that it will be easy.
- 14

Bunny Reversi
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Classic reversi game also known as othello now comes to fully 3d! Play as a Bunny with AI or with a friend online or in split-screen mode on one PC.
- 15

Bunny Sudoku
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Strategy and Indie with Defendion.
Play classic Sudoku in a new way as a Bunny with other players in co-op mode. Try new unique endless multiplayer mode - Sudoku Defense.
- 16

Portal Dungeon: Goblin Escape
Single-player alternative to Defendion — playable solo, no multiplayer required. Shares Indie with Defendion.
Portal Dungeon is a medieval fantasy action game where you have to activate a network of dungeon portals and clear them from the monsters.