Single-player games like Lythium
Below are 8 single-player Steam games similar to Lythium, 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 Lythium page.
Ranked picks
- 1

Trepang2
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
Become the ultimate badass in Trepang2: A gory, action-packed FPS set in the near future. Unleash all hell on your enemies, dodge bullets and leave a trail of destruction in this hardcore and frenetic shooter.
- 2

Dread Templar
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!
- 3

Back 4 Blood
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action with Lythium.
Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action.
- 4

Anger Foot
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
Anger Foot is a lightning fast action FPS where the only things harder than your ass kicking feet are the ass kicking beats.
- 5

PERISH
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
PERISH is a stylish 1-4 player FPS with a cross to bear. Slay hordes of creatures on the black sands of Purgatory and sell their gold-stained corpses to craven priests. Kill magnificent bosses and use the proceeds to gain entrance to Elysium, a place of cosmic revelations.
- 6

SUPERHOT: MIND CONTROL DELETE
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
The long-awaited third game in the groundbreaking SUPERHOT franchise - MIND CONTROL DELETE gives you more insight into the world of SUPERHOT, more story, more signature gameplay. Keep dancing the slow-motion ballet of destruction for so much longer than ever before.
- 7

Killing Floor
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action with Lythium.
6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!
- 8

Turbo Overkill
Single-player alternative to Lythium — playable solo, no multiplayer required. Shares Action and Indie with Lythium.
Enter Paradise as Johnny Turbo—half-metal, half-human, all-murder machine. Clean up the streets with a chainsaw leg, 15+ weapons and your hovercar as you battle the rogue AI Syn, rival bounty hunters and cyberpunks aplenty. Apogee’s most outrageous FPS since Duke Nukem 3D. Good hunting, Sir!