Check out zood location, as I said in another comment, also open source location tracker. Only on android though.
It is like a 10 year old game with many variants but the shattered version is still being developed
Edit, I checked it out the one you linked is an expansion fork. Thanks for linking. It has a lot of changes to the original in a good way.
Its the only location sharing app that actually works (and is open source). Glad I could help you out!
FindMyDevice, a find my server with channels through sms, a self hostable server, notifications. This is one of my favorite android utilities.
ZOOD location, a location sharing app that actually works
Shattered pixel dungeon. Open source dungeob crawler roguelike. Extremely fun.
OONI probe, a tool to test the censorship of wifi networks
Comaps, navigation from openstreetmap
Mullvad vpn, probably the best vpn imo
Mel brooks the history of the world part one
That and spaceballs
Sorry, I misunderstood you. If that is your use case then definitely try it out. I find myself losing my phone, grabbing a trusted contacts phone and texting myself fmd ring. It does have a webpage where you can lock, erase or take photos with the phone as well as location tracking.