Choose Retrovirus
Choose Retrovirus if you want the Multi-player, Online PvP, and Online Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend. Retrovirus launched in 2013.
Retrovirus vs Sublevel Zero Redux
Retrovirus and Sublevel Zero Redux both land in Action, Indie on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie on Steam. Retrovirus (2013) is 2 years older than Sublevel Zero Redux (2015). Sublevel Zero Redux scores higher on Steam reviews (85.4% positive) than Retrovirus (74.7% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Sublevel Zero Redux
Choose Sublevel Zero Redux if you want an Adventure game with VR Supported. On Steam, it's a focused single-player run rather than a multiplayer commitment. Sublevel Zero Redux launched in 2015.
Both Retrovirus and Sublevel Zero Redux sit in Action and Indie on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Retrovirus |  Sublevel Zero Redux | |
|---|---|---|
| Released | 2013 | 2015 |
| Genres | Action, Indie | Action, Indie, Adventure |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Unrated | Deck Playable |
| Price | Price unknown | 14.99 USD |
| Steam reviews | 74.7% positive (79 reviews) | 85.4% positive (383 reviews) |
| Multiplayer | Multi-player, Online Co-op, LAN Co-op | Single-player only |
| Developers | Cadenza Interactive | Sigtrap |
Side by side
- Both share Action, Indie on Steam.
- Retrovirus (2013) is 2 years older than Sublevel Zero Redux (2015).
- Sublevel Zero Redux scores higher on Steam reviews (85.4% positive) than Retrovirus (74.7% positive).
- Retrovirus has co-op; Sublevel Zero Redux does not.
- Sublevel Zero Redux is Deck Playable on Steam Deck; Retrovirus has no Deck rating yet.
Retrovirus vs Sublevel Zero Redux — FAQ
- Should I play Retrovirus or Sublevel Zero Redux first?
- If you want chronology, Retrovirus (2013) came out before Sublevel Zero Redux (2015). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Retrovirus and Sublevel Zero Redux similar?
- They overlap on Action, Indie on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does Sublevel Zero Redux have multiplayer like Retrovirus?
- No. Retrovirus supports multiplayer on Steam (Multi-player, Online Co-op, LAN Co-op), while Sublevel Zero Redux is listed as single-player only.