Top of me head

D2

• Random roll weapons removed • Mods needed for an extra +5 power. • Two primaries, and shotgun/sniper being heavy •No collections or any way to pull items.. •Tokens… everywhere •Shaders being 1 time use. •Levels needed for activities (not power level) • decrypt every engram. Including blues • Nightfalls being 20 minutes long.

D1 •SPRINT LOCKING •No fast travel. You had to go to orbit first before selecting a planet • Zero trackable quests menu. Only bounties. • infusion requiring multiple infusions for the level you wanted on a single gun. • original vault space was like 20 items. • Legendary Engrams turning into blues • getting kicked out of your inventory screen constantly when travelling. • No kiosks to reacquire exotics, emblems or shaders.