Skyward Ascension
F6/100Web serial by Sourkrauts
Caleb loved climbing because the rules were simple: don't fall, go up. Until the System arrived — and the mountain broke. When a fissure opens beneath him mid-climb, Caleb plummets into a newly formed dungeon on the back of a falling boulder. He should have died on impact. Instead, his fall is broken by the face of one of the dungeon's bosses, and the resulting surge of aether thrusts him into a brutal new reality. Armed with nothing but his body and a unique class built around his greatest strength — his hands — Caleb gains the ability to manifest spectral arms made of spiritual energy. To survive the hell he fell into and climb his way back to civilization, he'll have to master every inch of his power. In a world where strength decides everything, the only way forward is up.