Waterpark Simulator’s current public semantic version is 1.0.50. CayPlay published UPDATE 1.0.50 - Patch Notes on August 11, 2026 after the July 31 full release and the 1.0.21–1.0.48 launch-week fixes. The current Steam store lists the full release date, Online Co-op, 71 achievements, Steam Cloud, and Windows as the native platform for base-game AppID 3293260.
Use the patch pages when a current behavior differs from a launch video. 1.0.50 covers the Mafia, friends-only lobby, Saboteur, and tablet-ban changes. 1.0.48 covers staff quitting controls, pool movement, placement-rate protection, and display fixes. 1.0.43 covers host settings, Saboteurs, Mafia retaliation, staff quitting, and a broad fix list. 1.0.21–1.0.31 covers Steam file verification, host permissions, UI scaling, Museum missions, achievements, saving, and early launch fixes.
This tracker records released changes, not rumors or raw depot numbers. A Steam BuildID identifies a technical build and is not presented as the game’s public semantic version.
Current status and product boundary
The canonical game is Waterpark Simulator, AppID 3293260, developed and published by CayPlay. It left Early Access with version 1.0 on July 31, 2026 and reached the publicly named 1.0.50 patch on August 11. Current Steam metadata lists a native Windows build; it does not list native macOS or Linux support.
The separate Waterpark Simulator Demo is AppID 3730180. Its July 31 notice says old Demo saves are incompatible with the newly updated Demo, while new Demo saves can open in the full game and then cannot return to the Demo. That is a Demo product rule, not a base-game patch feature.
Waterpark Simulator Soundtrack is AppID 4811280 and is typed as music. It can appear alongside base-game content but is not gameplay DLC, an edition, or a source of mechanics.
What version 1.0 released
CayPlay’s launch notes confirm multiplayer for a host plus up to three friends or strangers, using either a new park or an existing park, with optional proximity voice. The same notes add multiplayer communication tools including walkie-talkies, a megaphone, and a trumpet. Spray-can use is disabled in multiplayer.
Building additions include customizable slides, the Beach map, new City content, three themes, themed research, large slides, weather, night operation, ziplines, and functional benches. Beach requires a new park because layouts are not transferable.
Progression additions include the Museum, three NPCs, three questlines, one currency per line, Aztec/Sea/Pirate research trees, and diamond prestige. The optional Mafia content offers dubious loans and a mini questline whose further consequences CayPlay intentionally leaves for players to discover.
Management additions include Security, Mascots, complete attraction breakdowns, weather effects, special events, a popcorn stand, optional night shifts with extra staff expense, guest sickness behavior, and a setting that disables guest sickness.
Character customization supports up to five saved character slots according to the release notes. Several tools and guest interactions were also added, alongside broad memory and performance improvements.
For a structured, source-by-source inventory, read the 1.0 launch guide.
Released changes versus roadmap
The official July 4 post discussed an in-game poll for future 1.1 content. The audit records a lazy river as the vote priority, but a poll result is not a release notice. This tracker will keep it in roadmap status until CayPlay publishes a post saying it shipped.
Likewise, preview posts for Museum, themes, custom slides, weather, night, Beach, Security, Mascots, Mafia, communications, and character customization were forward-looking before July 31. The 1.0 launch post now lists those features under released “NEW STUFF,” so their status changed from preview to released.
No guaranteed future version is inferred from CayPlay’s stated intention to slow the launch-week update pace. A plan to aim for weekly updates is not a promise of a fixed cadence, and small urgent fixes may be rolled into a later published note.
Pages affected by the 1.0 release
The beginner guide uses the released tutorial, management loop, prestige, and map boundaries. Exact difficulty values still require a live 1.0 capture.
Building covers released custom slides, City and Beach separation, themes, weather, night, benches, and ziplines. Geometry, costs, and editor limits are not inferred from promotional text.
Management covers released staff and guest systems, including Security, Mascots, breakdowns, sickness, weather, and overtime. Balance values remain update-sensitive.
Progression covers the Museum architecture, theme research, Mafia choice boundary, map goals, and diamond prestige without inventing quest or currency details.
Multiplayer now separates published host permissions from unverified persistence. Versions 1.0.28–1.0.50 added second-computer permission controls, painting and Caymart host settings, lobby bans, placement-rate protection, and stronger friends-only lobby safeguards. Host migration, client save ownership, cross-play, and cross-save remain unverified.
Achievements uses Steam’s current 71-entry public list. A future patch can add or change entries, so the count and descriptions carry a check date.
Troubleshooting follows CayPlay’s pinned support paths. Hardware, controller, Deck, Proton, and mod behavior must be retested after relevant changes.
How this tracker verifies an update
A new timeline entry needs a developer-authored Steam post, current exact-AppID store metadata, or another CayPlay-controlled source. The entry records publication date, author type, AppID, semantic version when stated, branch or platform boundary, and the pages affected.
Steam Community discussions written by players can reveal a recurring problem but are not official patch notes. A post is treated as first party only when the author is visibly marked as the developer or it appears in the official announcement feed.
Third-party depot data can help detect a changed build, but a BuildID is not converted into a semantic version. Compatibility telemetry is labeled with its observation date and tested build.
Roadmap, poll, and preview items remain separate from released changes. A trailer or screenshot can confirm that CayPlay showed a feature; the launch post or live current store must confirm it shipped.
Official update timeline
2026-08-11 - Update 1.0.50
Type: Public-branch patch
CayPlay fixed a Mafia progression case in which saving and quitting on the day the group should reappear could make the content missable. The patch also strengthened friends-only lobby host checks, reduced the chance of a Saboteur appearing, added the lobby-scoped Ban button to the tablet, and made small Chinese-localization improvements.
- Steam scope: base-game AppID 3293260, public Windows branch.
- Player action: update before diagnosing a missing Mafia return or current lobby-ban placement.
- Guide impact: Mafia, guest threats, multiplayer permissions, and current version answers.
Source: CayPlay official Steam news
2026-08-07 - Update 1.0.48
Type: Public-branch patch
Version 1.0.48 lets all multiplayer players move pools that contain blobs, fixes a 1440×1080 tooltip position, a three-star-pool problem, and global hammering audio. Staff no longer quit on Easy or Sandbox, and a new accessibility option can disable Staff Quitting and NPC retaliation. The patch also limits rapid item placement and strengthens protection against spoofed Steam IDs in friends-only games.
- Guide impact: staff, difficulty, host security, pool building, and display troubleshooting.
- Current boundary: later 1.0.50 adds another friends-only safeguard and tablet Ban access.
Source: CayPlay official Steam news
2026-08-06 - Update 1.0.43
Type: Public-branch patch
Version 1.0.43 added lobby-scoped bans, persisted general settings on the ticket-booth computer, and host options for painting and Caymart buying. It introduced staff quitting after repeated bullying, Mafia retaliation and more random waves, plus the Saboteur bad-visitor trait. Fixes covered non-host blob placement, Beach quest flooring, pool colliders and clipping, Duck slide paint, V-sync, weather-related presentation, and several guest-service behaviors.
- Guide impact: multiplayer permissions, staff, Mafia, guests, pools, Beach, and performance.
- Later boundary: 1.0.48 adds disable options; 1.0.50 reduces Saboteur chance.
Source: CayPlay official Steam news
2026-08-04 - Updates 1.0.21, 1.0.28, 1.0.30 and 1.0.31
Type: Consolidated launch-week patch notes
CayPlay’s post groups the four early patches. It gives a specific Steam file-verification fix for a park that looks empty after an update, adds UI scaling and better ultrawide support, improves the ticket-booth host permission system, fixes non-letter save characters, lets staff complete Museum missions, and addresses achievements, weather, research, staff duplication, Sandbox unlocks, multiplayer tools, and other launch issues.
- Guide impact: empty-park recovery, permissions, display, saves, Museum, achievements, and building.
- Version wording: the post title says 1.0.30 while its body lists changes through 1.0.31; this tracker preserves CayPlay’s own grouping.
Source: CayPlay official Steam news
2026-07-31 - Waterpark Simulator 1.0 is out now
Type: Full release
CayPlay released version 1.0 for base-game AppID 3293260. The announcement lists multiplayer, Beach, custom slides, Museum quests, three theme trees, night, weather, events, Security, Mascots, Mafia, new tools, breakdowns, guest sickness, and performance improvements.
- Steam scope: public Windows base game.
- Release state: left Early Access; semantic version 1.0.
- Guide impact: all pilot sections were checked against this release inventory.
Source: CayPlay official Steam news
2026-07-31 - Waterpark Simulator Demo compatibility notice updated
Type: Separate Demo notice
Demo AppID 3730180 received a store notice explaining that old Demo saves are incompatible with the new Demo. New Demo saves can open in the full game, but after the full version opens them they cannot return to the Demo.
- Product boundary: Demo only, not a base-game save guarantee.
- Player action: copy a Demo save before crossing into the full game.
- Guide impact: save and beginner guidance keep the one-way boundary explicit.
Source: Official Demo store page
2026-07-04 - Community poll discusses future 1.1 content
Type: Roadmap, not released
CayPlay discussed a player poll for post-launch 1.1 priorities. The audit records the lazy river as the selected priority, but no release entry has established that it shipped.
- State: planned or prioritized, not part of released 1.0 history.
- Maintenance rule: move it only after a developer release notice.
- Guide impact: no current mechanics page is created from the roadmap alone.
Source: CayPlay official Steam news
Update answers
What is the latest official version?
Version 1.0.50, published August 11, 2026, is the latest developer-named version found at this page’s check.
Is the lazy river already released?
Not established. It belongs to future 1.1 planning until CayPlay publishes a release confirmation.
Is the soundtrack gameplay DLC?
No. Related AppID 4811280 is a music product.
What is the current BuildID?
Not safely verified here. A stale pre-launch snapshot is not used as the semantic version.
Sources checked 2026-08-11: Steam store, official news feed, Demo page, and Steam achievements.