Single-player games like Retrovirus
Below are 13 single-player Steam games similar to Retrovirus, 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 Retrovirus page.
Ranked picks
- 1

Overload
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action with Retrovirus.
A new six-degree-of-freedom shooter with intuitive controls, amazing lighting and graphics. From the creators of Descent, Overload is the best zero-gravity robot-blasting combat ever.
- 2

Sol Survivor
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Indie with Retrovirus.
Jump in to intense turret defense action with Sol Survivor! Build turrets to defend your colony and the innocent colonists within. Smash enemies with volleys of actively-controlled orbital support. Play with friends in co-operative and competitive multiplayer matches or test your mettle against our new Survival mode!
- 3

Sublevel Zero Redux
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Sublevel Zero Redux is a roguelite six-degree-of-freedom shooter in a universe where reality is falling apart. Use your zero-g gunship to fight through a vast underground facility, looting advanced weapons to destroy hordes of deadly enemies.
- 4

Serious Sam Classic: The First Encounter
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!
- 5

Prodeus
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.
- 6

Black Ice
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Hack greedy megacorps to help as many people as you can in a high-agility cyberpunk looter/shooter RPG. Explore neon cyberspace vistas and outmaneuver AIs to customize your hacker OS and weapon combos. Play solo or online co-op with up to 10 people!
- 7

Blood: Refreshed Supply™
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action with Retrovirus.
Things are about to get… bloody! Soak up 42 pulse-pounding levels dripping with Lovecraftian atmosphere as you battle your way through armies of sycophantic cultists, zombies, gargoyles, hell hounds, and other insatiable horrors, in your quest to defeat the loathsome Tchernobog.
- 8

DUSK
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 9

Portal
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action with Retrovirus.
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
- 10

TRON 2.0
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action with Retrovirus.
Over 35 levels of challenging gameplay -- Race at the speed of light, fight off computer Viruses and engage in violent digital combat.
- 11

Reboot
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Indie with Retrovirus.
In the fall of 2050, nearly a decade after an AI crisis ended, the Bates and two others are trying to find their last hope, Ocean City. The shortage of supplies and the threat of zombies have already made things difficult for them, and the appearance of a band of bandits has added to their woes.
- 12

Descent
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action with Retrovirus.
Welcome to Descent™ - 27 levels of the most mind-bending, stomach-churning action game ever. Featuring true 3-Dimensional worlds and six degrees of freedom.
- 13

Hob
Single-player alternative to Retrovirus — playable solo, no multiplayer required. Shares Action and Indie with Retrovirus.
Transform the world of Hob! A new action-adventure from Runic Games, the award-winning studio behind Torchlight I and II. It's your chance. Make it home.