IMHO.

Wonderland X：Next Dream vs The Forgotten Killer

Wonderland X：Next Dream and The Forgotten Killer both land in Action, Strategy, 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 Action, Strategy, Adventure on Steam. Wonderland X：Next Dream (2025) is 1 year older than The Forgotten Killer (2026). Wonderland X：Next Dream is free; The Forgotten Killer is paid (3.74 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 Wonderland X：Next Dream

Choose Wonderland X：Next Dream if you want a Massively Multiplayer, RPG, and Free To Play game with MMO, Online PvP, and PvP. On Steam, it's free to play, so the barrier to trying it is zero. Wonderland X：Next Dream launched in 2025.

Choose The Forgotten Killer

Choose The Forgotten Killer if you want the Color Alternatives, Camera Comfort, and Playable without Timed Input side of the pairing. The Forgotten Killer launched in 2026.

Both Wonderland X：Next Dream and The Forgotten Killer sit in Action, Strategy, and Adventure on Steam and both list Multi-player, Online Co-op, and 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

Wonderland X：Next Dream vs The Forgotten Killer — Steam metadata comparison
Wonderland X：Next Dream — Steam game coverWonderland X：Next DreamThe Forgotten Killer — Steam game coverThe Forgotten Killer
Released20252026
GenresAction, Strategy, Adventure, Massively Multiplayer, RPG, Free To Play, CasualAction, Strategy, Adventure, Casual
PlatformsWindowsWindows
Steam DeckDeck PlayableUnrated
PriceFree to play3.74 USD
Steam reviews34.8% positive (46 reviews)—
MultiplayerMulti-player, Online Co-op, Co-opMulti-player, Online Co-op, Co-op
DevelopersWonderland X：Next DreamThe Forgotten Killer Hub, spatenbraten, king_lucas14, lavirhahha

Side by side

Wonderland X：Next Dream vs The Forgotten Killer — FAQ

Should I play Wonderland X：Next Dream or The Forgotten Killer first?
If you want chronology, Wonderland X：Next Dream (2025) came out before The Forgotten Killer (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 Wonderland X：Next Dream and The Forgotten Killer similar?
They overlap on Action, Strategy, 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.
Do both Wonderland X：Next Dream and The Forgotten Killer have co-op?
Yes — both list a co-op category on Steam. Specifics differ: Wonderland X：Next Dream ships Online Co-op, Co-op; The Forgotten Killer ships Online Co-op, Co-op.
Is Wonderland X：Next Dream free?
Yes — Wonderland X：Next Dream is a free-to-play Steam title. The Forgotten Killer is paid (3.74 USD).
Does Wonderland X：Next Dream run on Steam Deck?
Yes — Wonderland X：Next Dream is rated Deck Playable by Valve. The Forgotten Killer doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Wonderland X：Next Dream vs The Forgotten Killer (2026) · imho.run