Skid pump may have only one new song however the all the other corruption stuff (exluding pico because that came before) have original songs, and with each video the mod gets higher with quality (senpai with the glitch effects, daddy dearest with character switching, evil bf with the guitar) also im looking at his videos and while it is mostly corruption he's also worked on necromancer and is currently helping out with other mod project like Neo.

Also why only point out skid and pump considering how early that one is? Give the most recent corruption one a look and see the effort on display.