Full list of all 77 Rocket League achievements worth 2,200 gamerscore. It takes around 8-10 hours to unlock all of the achievements in the base game.
The base game contains 44 achievements worth 1,000 Gamerscore, and there are 5 DLC packs containing 33 achievements worth 1,200 Gamerscore.
Trade and receive one or more items with another player in a single transaction