the game is cool and kinda hard at the beginning, as an old game it has some problems but nothing that gonna messed up your gameplay, although if you are new at risk of rain and want one to start i think you should try the second one, not because its better just because its more receptive and it's easier to get by
and sniper/railgunner is the goat

not much to it but pretty fun

It's a good solid 7/10. Great chunk of content to explore, really good soundtrack, lots of replayibility. However, I will say unless you don't have 15$ to spare, buy the games remake Risk of Rain Returns instead. This game has a ton of bugs and multiplayer is an absolute pain in the ass to set up. I'd recommend buying when it's on sale for 2$ or if you just can't buy the much more polished remake.