Single-player games like Totally Defenceless
Below are 9 single-player Steam games similar to Totally Defenceless, 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 Totally Defenceless page.
Ranked picks
- 1
Diffusion
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
Tower defense / Roguelike / Sci-Fi / Pixel Art game with boomer games aesthetics. Mine resources and shoot those disgusting aliens right in their faces. Unlock new technology, develop new strategies and explore the planet. A modern old-school Pixel Art experience with the vibe of 90s classics.
- 2
Tep The Destroyer TD
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
TEP the destroyer is a single player tower defense game where you will face alien monsters and ships in ground and space battles! Your strategy will decide the fate of your people in a sci-fi environment of varying difficulties!
- 3
Micron Defense Force
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy with Totally Defenceless.
A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.
- 4
Jarred Defense
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy with Totally Defenceless.
A difficult maze-building tower defense. Protect the kitty from evil robots and endure its unhelpful comments. Force enemies the long way around, push them through lava, and adapt as levels change beneath you. No spells, no card modifiers. A love letter to Warcraft III custom maps and Flash games.
- 5
Save the Llama
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
Craft the perfect defense upon shifting platforms, turning gears, and railways to save your llamas from alien abduction in this space western tower defense.
- 6
Abyssfall: The Black Citadel
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
Abyssfall: The Black Citadel is a dark fantasy tower defense game where you build defenses, control a battle mage in real time, and gamble on a tabletop-inspired d20 Fate Dice system against waves of abyssal monsters.
- 7
Infested Planet
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
- 8
Raging Titan
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Strategy and Indie with Totally Defenceless.
Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!
- 9
Skeleton Warrior
Single-player alternative to Totally Defenceless — playable solo, no multiplayer required. Shares Indie with Totally Defenceless.
This is a third person action adventure game. Players are surrounded by zombies，Players are free to explore the surrounding areas，Players must avoid zombie attacks or kill zombies to ensure that their health value survives for as long as possible.