Thanks to koda's twitter I stumbled over

TWITCH PLAYS HEDGEWARS

(Kudos to twitch user testmarshall for making this!!!)

There you can play Hedgewars using chat, competing with your enemies and possibly also your team mates
Gain points and money, bet on results, buy items or special events etc. etc.!

E.g. enter st blue (set team) to join the blue team!
Then you can use things like left 5 to make your Hedgehog walk (if it's your team's turn), then choose a weapon and follow the chat's instruction about how to fire/target your weapon (often fire <angle> <power>)

Read the instructions below the stream if you want to find out more

PS: Since this is twitch, expect a stream delay of 10 seconds or higher - the (sub-)turn times do compensate for that though!