There are 37 achievements tracked for Slash'EM Extended in the Junethack tournament.
ascended
entered Astral Plane
entered Elemental Planes
obtained the Amulet of Yendor
performed the Invocation Ritual
obtained the Book of the Dead
obtained the Bell of Opening
obtained the Candelabrum of Invocation
entered Gehennom
defeated Medusa
obtained the luckstone from the Mines
obtained the Sokoban Prize
escaped in celestial disgrace
defeated Nightmare
defeated Vecna
defeated Beholder
defeated Ruggo
defeated Kroo
defeated Grund
defeated Largestgiant
defeated Shelob
defeated Girtab
defeated Aphrodite
defeated Frankenstein
defeated Croesus
defeated Dagon
defeated Hydra
killed the BOFH
killed an elder priest
killed the Motherfucker Glass Golem
killed Erogenous Katia
killed Tiksrvzllat
killed the Witch King of Angmar
imbued the Bell of Opening
imbued the Amulet of Yendor
obtained the stone of magic resistance from the Deep Mines
reached the bottom of the Swimming Pools