This DLC includes the following content:
Songs
▣ 1. Be Higher (Nauts Remix) | by Nauts▣ 2. GM05 (NieN Metal Remix) | by NieN
▣ 3. GM05 (RiraN Hardstyle Remix) | by RiraN
▣ 4. Panzer Schock (Culture Shock - ATAS Remix) | by ATAS
▣ 5. Milyang Fortress ~VIA GUPO REMIX~ | by STREME REVERIE × FUGU SUISAN
▣ 6. Egyptian Rule (Roy Mikelate Remix) | by Roy Mikelate
▣ 7. Saving Private Skull (KIEN Remix) | by KIEN feat. Rozbud
▣ 8. Tank Slayer (DoubleTO Remix) | by DoubleTO
▣ 9. The Invincible (A1NVERSE Remix) | by A1NVERSE
▣ 10. Welcome to Skull's Hell (yusi. Remix) | by yusi.
▣ 11. I know what you did last stage (DoubleTO Ver.) | by DoubleTO
▣ 12. TeMP Time (DoubleTO Ver.) | by DoubleTO
▣ 13. Once in a Lifetime (Nauts Ver.) | by Nauts
▣ 14. Life Is So Beautiful (Nauts Ver.) | by Nauts
▣ 15. The Profound (Rozbud Ver.) | by Rozbud
▣ 16. The Profound (KARUT Remix) | by KARUT
▣ 17. There's Something about Supertank (Sobrem Remix) | by Sobrem
▣ 18. Fortress 2+ The Valley of City (Merry-Go-Round Mix) | by Rozbud
▣ 19. Dark Forest (StaticSphere Remix) | by StaticSphere
▣ 20. Jungle of Crossbow | by SoundTeMP
▣ 21. Over the Rainbow | by SoundTeMP
▣ 22. Sphinx Temple | by SoundTeMP
▣ 23. SKY-II (Be Higher - FORTRESS 3 PAEWANG REMIX) | by SoundTeMP
Skins
“FORTRESS Collaboration” exclusive system theme, panel skin, and note skin.“FORTRESS 3 PAEWANG” exclusive system theme, panel skin, and note skin.
