GI Joe Roleplaying Game Humble Bundle is for the third RPG that uses Renegade Game Studios' Essence 20 System. I'm not especially impressed with Transformers and Power Rangers but it'd be nice to complete it and the games are inter-playable (at least there are cross-over adventures so I'm guessing inter-playable as-is no special rules).

The 14-item non-physical part of the bundle is $18 for:

GI JOE Roleplaying Game Core Rulebook (2022) - 354 pages
Quartermaster's Guide to Gear (2024) - 128-page supplement

Cobra Codex Sourcebook (2023) - 234-page supplement
Ferocious Fighters: Factions in Action v1 (2024) - 98 page supplement with 7 factions
Intercontinental Adventures: Factions in Action v2 (2024) - three unaligned factions
Sgt. Slaughter Limited Edition Accessory Pack (2023) - 40-page mini-sourcebook

Operation: Cold Iron (2022) - 144-page 4-part adventure
Emerald Oubliette (2022) - 48-page adventure from the Game Master Screen (Screen only in physical bundle)

Operation Spring Cleaning (2023) - 32-page pdf-only adventure
Welcome to Treacherous Coils of Cobra (2023) - 42-page pdf-only adventure
Operation Close Call - pdf-only adventure
Cobra/Con Fusion (2023) - 32-page cross-over adventure

Free Bonus Material
Essence 20 Field Guide to Action and Adventure (2023) - 290-page supplement included in previous bundles