Choose REGRET
Choose REGRET if you want the Online Co-op, Surround Sound, and Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend.
REGRET vs SIDE EFFECTS
REGRET and SIDE EFFECTS both land in Strategy, 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 Strategy, Indie on Steam. REGRET has co-op; SIDE EFFECTS does not. SIDE EFFECTS is Deck Verified on Steam Deck; REGRET has no Deck rating yet. 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 SIDE EFFECTS
Choose SIDE EFFECTS if it's Steam Deck Verified, so handheld play works out of the box. SIDE EFFECTS launched in 2025.
Both REGRET and SIDE EFFECTS sit in Strategy and Indie on Steam and both list Multi-player, Online PvP, and PvP, 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
 REGRET |  SIDE EFFECTS | |
|---|---|---|
| Released | — | 2025 |
| Genres | Strategy, Indie | Strategy, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Deck Verified |
| Price | Price unknown | 4.99 USD |
| Steam reviews | — | 82.6% positive (386 reviews) |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player |
| Developers | Morty's Develop | hirohun, Mr.Pootsley, Jaybooty, Lofar42 |
Side by side
- Both share Strategy, Indie on Steam.
- REGRET has co-op; SIDE EFFECTS does not.
- SIDE EFFECTS is Deck Verified on Steam Deck; REGRET has no Deck rating yet.
REGRET vs SIDE EFFECTS — FAQ
- Are REGRET and SIDE EFFECTS similar?
- They overlap on Strategy, 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.