Hi, thanks for retrying the game and for the feedback. After you collect all the 20 filter, the player dies from drowning basically.
For the blender engine, yes you can create games with, but only with older versions (i used the 2.79) since the newer ones don't feature the game engine anymore.
Blender 2.79 is not the best or newest engine, but i like it because it allows you to create the whole game inside it without any other program, from modelling to texturing to scripting to animating. Also the logic bricks in Blender are a great tool to create a game without much code: for reference this whole game is made with logics bricks, the only lines of code are for the 2d filters i used for the underwater effect.
I hope this explains pretty much the pros and cons of it. Thanks again for the rating and the feedback!
- Denny