Pick two packs to see what they share, what is unique to each, and which mods they ship at different versions. Libraries are left out: they don't change how a pack plays.
In both
158
Only in All the Mods 10: To the Sky
119
Only in FTB Skies 2: Aero
244
Same mod, different version
34
The two packs at a glance
All the Mods 10: To the Sky
FTB Skies 2: Aero
Minecraft version
1.21.1
1.21.1
Mod loader
NeoForge
NeoForge
Mods
322
477
Quests
3,713
1,595
Guides
277
399
Newest release
2.1.0 · Oct 15, 2026
1.13.0 · Sep 28, 2026
Comparing All the Mods 10: To the Sky 2.1.0 with FTB Skies 2: Aero 1.13.0.
Only in All the Mods 10: To the Sky
In both
Mods both All the Mods 10: To the Sky and FTB Skies 2: Aero ship. They can still behave differently, because each pack sets its own recipes and configs.
Same mod, different version
A different version can mean different recipes, machines or balance. The guides say what each pack changed.