Best Method for Mapping Steam Controls

[Dallinj]

I'm currently using one of those zero-delay usb encoders with my buttons and joysticks (I believe it was the easyget "branded" ones on Amazon), and was wondering what my options are for mapping them to Steam/Windows games. The rest of my software is working perfectly as-is, but when I try to play things like Overcooked, Nidhogg, Castle Crashers, etc. things get complicated in terms of the controls either not showing, not remapping, or other issues. I've tried using big-picture mode in Steam to fix the controls but it doesn't seem to apply in-game. I'm thinking x360ce is my best option but it's so far been difficult to get it running the way I want, so any help/alternatives would be awesome!

PS: If you haven't tried out "Crawl" on steam yet, it's got fantastic arcade cab support, and maps perfectly