Choose Avalon
Choose Avalon if it matches what drew you to this matchup. Avalon launched in 2021.
Avalon vs Adverse Effects
Avalon and Adverse Effects both land in Casual 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 are Casual games on Steam. Avalon (2021) is 2 years older than Adverse Effects (2023). Adverse Effects scores higher on Steam reviews (89.7% positive) than Avalon (78.8% 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 Adverse Effects
Choose Adverse Effects if it carries the stronger Steam consensus at 89.7% positive across 116 reviews.
Both Avalon and Adverse Effects sit in Casual 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
 Avalon |  Adverse Effects | |
|---|---|---|
| Released | 2021 | 2023 |
| Genres | Casual | Casual |
| Platforms | Windows, Linux | Windows, macOS |
| Steam Deck | Deck Unsupported | Deck Unsupported |
| Price | 7.99 USD | 4.99 USD |
| Steam reviews | 78.8% positive (118 reviews) | 89.7% positive (116 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Keys to My Lockheart | CellStudios |
Side by side
- Both are Casual games on Steam.
- Avalon (2021) is 2 years older than Adverse Effects (2023).
- Adverse Effects scores higher on Steam reviews (89.7% positive) than Avalon (78.8% positive).
- Adverse Effects is currently ~38% cheaper on Steam than Avalon (4.99 USD vs. 7.99 USD).
- Both are Deck Unsupported.
Avalon vs Adverse Effects — FAQ
- Which is better, Avalon or Adverse Effects?
- On Steam reviews Adverse Effects scores higher (89.7% positive) than Avalon (78.8% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Adverse Effects is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Avalon or Adverse Effects first?
- If you want chronology, Avalon (2021) came out before Adverse Effects (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 Avalon and Adverse Effects similar?
- They overlap on Casual 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.