Choose What Happened to Lily?
Choose What Happened to Lily? if you want a Casual experience. On Steam, it's a focused single-player run rather than a multiplayer commitment. What Happened to Lily? launched in 2025.
What Happened to Lily? vs Mirror Backrooms
What Happened to Lily? and Mirror Backrooms 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. What Happened to Lily? (2025) is 1 year older than Mirror Backrooms (2026). Mirror Backrooms has co-op; What Happened to Lily? does not. 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 Mirror Backrooms
Choose Mirror Backrooms if you want the Multi-player, Online Co-op, and Color Alternatives side of the pairing. On Steam, it has co-op, so you can bring a friend. Mirror Backrooms launched in 2026.
Both What Happened to Lily? and Mirror Backrooms 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
 What Happened to Lily? |  Mirror Backrooms | |
|---|---|---|
| Released | 2025 | 2026 |
| Genres | Indie, Adventure, Casual | Indie, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 3.99 USD | Price unknown |
| Steam reviews | 82.4% positive (51 reviews) | — |
| Multiplayer | Single-player only | Multi-player, Online Co-op, Co-op |
| Developers | Montee Games | Funcity |
Side by side
- Both share Indie, Adventure on Steam.
- What Happened to Lily? (2025) is 1 year older than Mirror Backrooms (2026).
- Mirror Backrooms has co-op; What Happened to Lily? does not.
What Happened to Lily? vs Mirror Backrooms — FAQ
- Should I play What Happened to Lily? or Mirror Backrooms first?
- If you want chronology, What Happened to Lily? (2025) came out before Mirror Backrooms (2026). 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 What Happened to Lily? and Mirror Backrooms 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 What Happened to Lily? have multiplayer like Mirror Backrooms?
- No. Mirror Backrooms supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while What Happened to Lily? is listed as single-player only.