Choose Parallel Experiment
Choose Parallel Experiment if you want the Multi-player, Online Co-op, and Co-op side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Parallel Experiment launched in 2025.
Parallel Experiment vs Sticker Detective: By the Book
Parallel Experiment and Sticker Detective: By the Book both land in Indie, Adventure 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 Indie, Adventure on Steam. Parallel Experiment has co-op; Sticker Detective: By the Book does not. Parallel Experiment is Deck Verified on Steam Deck; Sticker Detective: By the Book 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 Sticker Detective: By the Book
Choose Sticker Detective: By the Book if you want the Custom Volume Controls, Playable without Timed Input, and Mouse Only Option side of the pairing. On Steam, it's a focused single-player run rather than a multiplayer commitment.
Both Parallel Experiment and Sticker Detective: By the Book sit in Indie and Adventure 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
 Parallel Experiment |  Sticker Detective: By the Book | |
|---|---|---|
| Released | 2025 | — |
| Genres | Indie, Adventure | Indie, Adventure |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 9.99 USD | Price unknown |
| Steam reviews | 87.3% positive (324 reviews) | — |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Online Co-op | Single-player only |
| Developers | Eleven Puzzles | Emily Okon |
Side by side
- Both share Indie, Adventure on Steam.
- Parallel Experiment has co-op; Sticker Detective: By the Book does not.
- Parallel Experiment is Deck Verified on Steam Deck; Sticker Detective: By the Book has no Deck rating yet.
Parallel Experiment vs Sticker Detective: By the Book — FAQ
- Are Parallel Experiment and Sticker Detective: By the Book similar?
- They overlap on Indie, Adventure 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 Sticker Detective: By the Book have multiplayer like Parallel Experiment?
- No. Parallel Experiment supports multiplayer on Steam (Multi-player, Cross-Platform Multiplayer, Online Co-op), while Sticker Detective: By the Book is listed as single-player only.
- Does Parallel Experiment run on Steam Deck?
- Yes — Parallel Experiment is rated Deck Verified by Valve. Sticker Detective: By the Book doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.