Plugin Help Plugins to make my survival server harder.

Hi there, sorry if this is the wrong section. I don't come on the forums often. My question is if anyone can givie me a list of cool 1.11.2 (latest) bukkit survival plugins that make playing plain vanilla minecraft a bit harder. My private server for just me and my friends is restricted to survival and we just go around building add on's to our village and going on adventures, but lately its gotten boring. I upgraded it to a bukkit server and I want to only add plugins that make it harder or make it a bit fun without going away from the vanilla survival theme, or things that just enhance the experience. 1.11.2 only, I've found tons of cool ones that stopped development like 4 years ago. ;( THANKS