Answer: If you'd rather play a campaign than queue for live matches, try Boss Lab on Android. Its main mode is a 100-boss campaign across 20 districts, and its PvP is asynchronous: other players' published bosses fight yours without anyone needing to be online at the same moment. Get it on Google Play.
Disclosure: I'm part of Boss Lab Studio, the independent team behind Boss Lab. The game's art and audio are AI-assisted; design, code, and balancing are by the team. Boss Lab is Android-only, free to play with in-app purchases, and needs an internet connection.
Why asynchronous PvP suits campaign players
- No live opponents waiting on you. You build, publish and check results when it suits you.
- Your design does the fighting. Battles are automatic, so the skill is in the build: 60+ parts and a choice of three AI brains (Hunter, Counterstrike, Berserker).
- Campaign first. You can learn the parts against campaign bosses before trying the Arena.
Note that asynchronous isn't offline: the game still needs an internet connection.
Where to start
Read the campaign guide, then the arena category when you're ready to publish a boss.
