The event has also announced an acoustic stage.
The event will take place from 17th – 19th August at Fernhill Farm near Bristol.
The new additions join headliners Converge and Explosions In The Sky.
Loads more bands are still to be announced for the August event.
Their headline set will be a UK festival exclusive.
ArcTanGent will take place from 18th – 20th August at Fernhill Farm, near Bristol.
The festival will take place from 18th – 20th August at Fernhill Farm, near Bristol.
Caspian, Owen and TTNG will also be heading down to the festival.