My dad got a free palm pilot m125 or something and I used a ti/HP calculator emulator on it since my parents thought buying a $99+ calculator was too expensive. fun writing apps in basic for that thing and the games for it were the best mobile ones. I did envy people with Mario and drug wars on their calculators though.
I played the heck out of some space trading game based on drug wars I think. You “flew” around between planets buying and selling cargo.
I would love to play something like that again on my phone.
Space trader?
https://en.wikipedia.org/wiki/Space_Trader_(Palm_OS)
I played it recently on iOS via the palm web emulator
https://cloudpilot-emu.github.io/