I bought my first Android phone in late 2010. Its 600 MHz single-core CPU just barely ran a GBA emulator at playable speeds. The screen wasn’t multitouch and a bug in the operating system (fixed about a year or two later by the manufacturer) meant that any time the screen was being touched, CPU load would shoot up to 100% and everything slowed down to a crawl, which meant I could only play turn-based titles. That’s how I discovered Advance Wars.