Single-player games like DEFRAG
Below are 11 single-player Steam games similar to DEFRAG, 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 DEFRAG page.
Ranked picks
- 1

Nodebuster
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
Nodebuster is a short, experimental incremental game about busting nodes and destroying reality.
- 2

Antivirus PROTOCOL
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
Antivirus PROTOCOL is an incremental game about destroying viruses. Learn and adapt, collect data, upgrade yourself, and eliminate the Virus that has taken over the world.
- 3

Xenosensory
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
Xenosensory is a short incremental game with horror themes. Use your cursor to bust Xenos and save convicts then spend your research points on skill tree upgrades, actions, gadgets, and uncover the true horrifying nature of this space station nightmare.
- 4

Minutescape
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Simulation with DEFRAG.
Dodge bullets and upgrade yourself in Minutescape, a retro-inspired incremental game that keeps unfolding. Unlock new abilities and keep upgrading yourself to survive for 5 consecutive minutes.
- 5

Incredicer
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
Incredicer is a short, incremental dice game where you roll dice, earn money, upgrade and buy helper hands to automate and increase your income.
- 6

Piñata Go Boom
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
A small incremental game about smashing piñatas, collecting toys, and climbing the corporate ladder as you unlock a vast upgrade tree.
- 7

Luckyest
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
A quick, incremental scratch-and-reveal game focused on compounding choices - set stakes, uncover outcomes, cash out or push for bigger multipliers, and funnel winnings into permanent upgrades that accelerate income and unlock new tools over time.
- 8

Cult Nation
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
A short incremental game about sacrificing all your cult followers and collecting blood to awaken the devil.
- 9

Slay the Spire 2
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Strategy and Indie with DEFRAG.
The iconic roguelike deckbuilder returns. Craft a unique deck, encounter bizarre creatures, and discover relics of immense power in Slay the Spire 2!
- 10

Inscryption
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Indie and Strategy with DEFRAG.
Inscryption is an inky black card-based odyssey that blends the deckbuilding roguelike, escape-room style puzzles, and psychological horror into a blood-laced smoothie. Darker still are the secrets inscrybed upon the cards...
- 11

A Game About Feeding A Black Hole
Single-player alternative to DEFRAG — playable solo, no multiplayer required. Shares Indie and Casual with DEFRAG.
A short incremental game about feeding a Black Hole matter by destroying Asteroids, Planets, and Stars.