Choose Erroneous
Choose Erroneous if you want an Early Access experience. On Steam, it's free to play, so the barrier to trying it is zero. Erroneous launched in 2022.
Erroneous vs Portable Ops
Erroneous and Portable Ops 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. Erroneous (2022) is 1 year older than Portable Ops (2023). Erroneous is free; Portable Ops is paid (14.99 USD). 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 Portable Ops
Choose Portable Ops if you want a Simulation experience. Portable Ops launched in 2023.
Both Erroneous and Portable Ops sit in Action and Indie on Steam and both list Multi-player, Online PvP, and Online Co-op, 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
 Erroneous |  Portable Ops | |
|---|---|---|
| Released | 2022 | 2023 |
| Genres | Action, Indie, Early Access | Action, Indie, Simulation |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Free to play | 14.99 USD |
| Steam reviews | 81% positive (21 reviews) | 4 reviews |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Online Co-op | Multi-player, Online Co-op, LAN Co-op |
| Developers | ErroneousCompany | Sean Smith, Outlaw Games |
Side by side
- Both share Action, Indie on Steam.
- Erroneous (2022) is 1 year older than Portable Ops (2023).
- Erroneous is free; Portable Ops is paid (14.99 USD).
- Both support cooperative play.
Erroneous vs Portable Ops — FAQ
- Should I play Erroneous or Portable Ops first?
- If you want chronology, Erroneous (2022) came out before Portable Ops (2023). 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 Erroneous and Portable Ops 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.
- Do both Erroneous and Portable Ops have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Erroneous ships Online Co-op, LAN Co-op; Portable Ops ships Online Co-op, LAN Co-op.
- Is Erroneous free?
- Yes — Erroneous is a free-to-play Steam title. Portable Ops is paid (14.99 USD).