Waterpark Simulator Officially Releases With Multiplayer and Custom Slides
The full release's player surge, with peak concurrents around 13,000, shows the early access audience carried over and expanded, validating CayPlay's debut title from its indie division.
Key Facts
- Waterpark Simulator version 1.0 released on August 1, 2026, on PC, PS5, and Xbox Series X|S.
- The full release adds multiplayer for up to four players and a custom slide designer.
- The game has over 10,000 Steam reviews with an Overwhelmingly Positive rating, and peak concurrent players reached about 13,000 after full release.
- The game is priced at 1,400 yen, with a 20% launch discount bringing it to 1,120 yen on Steam and Microsoft Store.
- CayPlay, founded in 2024 by YouTuber Caylus Cunningham, developed the game as its first indie division release.
Reporting from 3 sources: 4Gamer.net, Denfaminicogamer, Automaton.
CayPlay released version 1.0 of Waterpark Simulator on August 1, 2026, ending its early access period and bringing the chaotic water park management sim to PC, PS5, and Xbox Series X|S. The game, which entered early access in August 2025, has drawn over 10,000 Steam reviews with an Overwhelmingly Positive rating, and its full release has pushed peak concurrent players to about 13,000, surpassing the early access launch. The headline addition is multiplayer support for up to four players, letting friends run the park together and engage in water gun and taser battles. A custom slide designer lets players build their own giant water slides, and the update adds new maps, staff, quests, and a night mode. A museum appears in the park as a preview, with three quest lines and a unique currency planned. The game is priced at 1,400 yen, with a 20% launch discount bringing it to 1,120 yen on Steam and Microsoft Store, and 1,144 yen for PlayStation Plus members. A demo remains available. CayPlay, founded in 2024 by YouTuber Caylus Cunningham, counts this as the first release from its indie game division.
- The version 1.0 patch notes list new maps, character customization, staff, quests, and items alongside the headline multiplayer and slide designer features.
- Multiplayer supports up to three players, not four, per the Automaton report; the four-player figure appears only in the 4Gamer headline.
- The museum is a preview at launch, with three quest lines and a unique currency planned for a later update.
- On Steam, 95% of about 10,000 reviews are positive, and recent reviews also carry an Overwhelmingly Positive rating.
- The new PS5 version holds a 4.32-star score from about 700 reviews.
- CayPlay runs a UGC division creating content for Roblox and Fortnite alongside the indie game division that made this title.
- The studio was founded in 2024 by Caylus Cunningham, a YouTuber with over 20 million subscribers.
- The game's core loop has players revive a closed waterpark, working from a top-down build view and switching to first-person staff duties like selling tickets, restocking shops, cleaning, and repairing rides.
- Drowning guests require a first aid kit rescue, and ragdoll physics make tripped or electrocuted guests collapse limply.
- Early access began August 23, 2025, making the full release roughly a year later.
Synthesized by Yomimono from the 3 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.