Solution

If you had trouble to find everything, you can check what you missed...
Maybe it will help you next year...

The "big price" was Return of the Obra Dinn. To access the GA you need to find 5 other Giveaways.

1. You need to find the Gris Giveaway.
   This was hidden in a Puzzle that was hidden in this topic as last point in "how can I find a GAs?"
   https://www.steamgifts.com/giveaway/7jTdT/gris - https://www.jigidi.com/solve.php?id=HEC9GT3O

2. Second letter was in an Absolve GA... To find it you need to search for the 🐰...
   You could have find a topic where the link is :)
   https://www.steamgifts.com/giveaway/Pby1J/absolver - https://www.steamgifts.com/discussion/lJF6P/-

3. We are leaving Steamgifts. On my Profil you could find an Artwork with a controller. Under this Artwork you find a Link to a little Quiz. Answers are easy to find. This leads you to the Risk of Rain 2 GA (and some others)
   https://www.steamgifts.com/giveaway/mZCdj/risk-of-rain-2 - https://www.flexiquiz.com/SC/N/4075d90a-dbdb-4685-adfe-772ed8dcdc57

4. It's always a good Idea to check, how you could solve the puzzle last year...
   If you searched for the old topic you will see, that there is a new link directly in the beginning wich leads to an Action Henk GA
   https://www.steamgifts.com/giveaway/I5qau/action-henk https://www.steamgifts.com/discussion/mqzPm/easter-hunt-solution

5. Back to the Artwork from Point 3: On top of the controller you could find the code "k4Yqb"
   that leads to an GA for METAL GEAR SOLID V: GROUND ZEROES.
   https://www.steamgifts.com/giveaway/k4Yqb/metal-gear-solid-v-ground-zeroes https://steamcommunity.com/sharedfiles/filedetails/?id=1712699223

Together you could enter this: https://www.steamgifts.com/giveaway/1ULGf/return-of-the-obra-dinn

Also there were some hidden GAs in topics and stuff but I think this was, what most people where looking for.

Hey Guys, the 🐰is around the corner so start to find your 🥚.

What is this?

• Over the next few days I'll hide some GAs here and there just like the 🐰 does.
  Maybe there will be false tracks and or hints.

How can I find the GAs?

• they will be hidden in topics
• you might find hints, links or anything on steam somewhere in my profile
• the puzzles will not be unbeliveable hard and will be solveable by most of you. (Maybe it will took some time but you don't need to be the super hacker with encryption-skills or anything)
  If you stuck a good place is always zelgh magic guide to basic sg puzzling

What GAs can I expect?
GAs will be invite, L1 GAs and contain bundled and unbundled games. Overall there are 20 games and highlights are Griss, Risk of Rain 2 and Return Of The Obra Dinn.
All giveaways will be open till monday, 22nd april 23:59 (cet)

other Rules?
You can bump, you can contribute and hide more eggs, you can stay silent... :)
BUT IF YOU WIN, PLAY THE GAME!
AND PLEASE DON'T SHARE ANY HINTS!