Electric

Endless Sky is on mobile now?!

Unfortunately 99% do suck ass these days. Rewind a decade and the Play Store used to have so many great games, even the free ones.

If you need decent mobile games:

Space RPG series

Space Courser (not sure if it still exists)

Space Traders: Frontiers

Mindustry (free and open source!!!)

BTD5 & 6 (personally I use the Netflix editions)

Terraria

Stardew Valley

Deadcells

Wizard of Legend

Villagers and Heroes (old school, small MMO cross platform with PC)

Albion Online (same as above but bigger and newer)

World of Goo

Hyperspace Delivery Service

Elder Scrolls Legends (I think it shutdown?)

Polytopia

Minecraft

Gladiabots

Pokemon Showdown (technically a web app)

A whole assortment of console emulators!