ALTF42 appear

ALTF42 is available in advance as a free trial version at Steam Next Fest from February 6~13, 2023.
Steam Next Fest is a great opportunity to watch and experience real-time pain.
ALTF4 is not a keyboard button.
ALTF4 is a game that provides a pleasant run, unpleasant trap, joyful music, and familiarity with death.
ALTF42 is not a typo.
ALTF42 is available on Steam in March 2023 as Early Access.