It's a Secret Achievement - DOOM (1993) - Exophase.com

DOOM (1993)

Xbox One

Windows 10

96,516 Achievements Earned
19,854 Players Tracked
19 Total Achievements
23,670 Obtainable EXP
1,000 Gamerscore
240 100% Club

Find a secret level

50

18.47% Rare - 595.00 EXP

You have not earned this achievement yet