Here’s an updates list of services on this site:

IRC(lagrangepoint.yxz port 6667, no ssl), also on Yggdrasil!

Web(This site)

Gemini

Gopher

Nex

Spartan

Xonotic game

Yggdrasil router

I2PD

IPFS

Afaik, anything that be reached via IPV6 can also be reached over Yggdrasil. I2PD is heavily untested tho. I will test for sure later!