Ah gotcha. I don’t know of a foss version but you can use Buzzkill or STFO to make a notification rule that turns up sound for a matching text message or something like that. I.e. send a text “ring my phone” and make a rule for it to do a sound

https://www.google.com/android/find/

You can use the play sound button to make it ring

StarCraft 2. I have too much to think about in real life so I need something that forces me to devote 100% of my attention to it. I don’t particularly care if I lose so I can just queue again and again and come out with my brain reset.