Apologies, would you mind filing this here https://github.com/ValveSoftware/Source-1-Games/issues/ instead. We’re trying to keep all the source bugs in one place. Could you add to the bug whether you started a fresh game or loaded a save game, and a screenshot of the water that doesn’t kill you.
Nothing extracted yet.
In Testchamber 15 falling into the water/slime/goo should cause health to quickly decline and after a short time death. This does not occur and it is possible to complete the level without completing all puzzles as a result.