What the official listing confirms
Steam lists single-player, multiplayer, online co-op and full controller support.
Use this as a controlled first-session test
Record host build, guest build and any visible error when testing a session.
- Confirm App 3293260
- Match game builds
- Invite one player
- Test one build action
- Record save behavior
Keep the answer current
Waterpark Simulator can change after updates. Verify patch-sensitive values in the current build and record the date before treating a route, build, or requirement as permanent.
Local tracker