The risks are unusual, so the wording is unusual
Escape rooms rarely produce broken bones, which makes it tempting to treat the waiver as a formality. The actual exposure sits elsewhere: low light and trip hazards, confined spaces triggering claustrophobia or panic, strobe and sound effects with photosensitivity implications, physical props, and the anxiety of being locked in a themed space.
A generic activity release does not name any of that. Yours should, alongside a plain statement of how a guest exits the room at any time — which is both a safety fact and a legal one.