I have a Behringer UMC202HC and I use with microphone and electric guitar. It can accept quarter inch (edit: and XLR) inputs and outputs. I use a quarter inch to eighth inch adapter for my headphones, I assume you can get an adapter for yours as well.
The interface allows for active monitoring of both channels (sending audio to headphones) and you can pipe computer audio in as well. Whatever DAW you’re using can also help with setting that up.
I use an MXL 990 condenser mic which has lasted for years and has good quality.
I’m developing a game that’s in this genre in between Total War and this (from my childhood memory) and Conquest of Elysium. This review inspired me to play it again.