I love Gloomhaven and have been printing quite a large number of the printable 3D objects to replace in-game tiles. However, I didn't really have a place to put them, so I designed this organizer to house them.

The objects this tray is designed for were made by Robagon - a big shoutout to him for all his hard work making these great prints (except for the bush, I opted for a flatter top model). They make the playing experience more fun!

You will need one shelf per tray. Print the shelf with a brim. The other lid and trays don't need a brim.

Each shelf has 4 guides printed on the corners to make fitting the shelves together simple. However, you will want to glue them together, including the lid. I tried to design it to be friction fit, but it kept breaking so I decided to simply use them as guides and use glue instead. I used hot glue which worked OK for me.

Each shelf is 210x209x45mm.
Each insert/tray is 200x200x18mm.

Guides for which objects go in which slot for each tray are in the photos (thank you Drakulahn for the suggestion).

The objects that each tray holds are as follows (amounts are correct for how many tiles to replace in game):

TRAY 1
4x Sarcophagus https://www.thingiverse.com/thing:3395959
4x Nest https://www.thingiverse.com/thing:2760970
6x Stone Pillar - Square with Brick https://www.thingiverse.com/thing:2990524
(Note: I imagine it could house the other pillars, but this is the one I printed)
4x Altar https://www.thingiverse.com/thing:2763215
6x Rock Column https://www.thingiverse.com/thing:2769270

TRAY 2
6x Wall Section https://www.thingiverse.com/thing:2951824
6x Stalagmite https://www.thingiverse.com/thing:2776232
3x Log https://www.thingiverse.com/thing:3560192
2x Crystal https://www.thingiverse.com/thing:2979597
4x Bookcase https://www.thingiverse.com/thing:2897372
3x Barrel https://www.thingiverse.com/thing:2950487
6x Spike Trap https://www.thingiverse.com/thing:2876535
2x Cabinet https://www.thingiverse.com/thing:2759363/files

TRAY 3
6x Poison Gas Trap https://www.thingiverse.com/thing:2980971
2x Wooden Crate https://www.thingiverse.com/thing:2949680
6x Thorns (NO base) https://www.thingiverse.com/thing:2806925
(Note: I did not design it to fit the model with the base. Sorry!)
6x Rubble https://www.thingiverse.com/thing:2945270
6x Pressure Plate https://www.thingiverse.com/thing:2993611
4x Stump https://www.thingiverse.com/thing:3008880
6x Bush https://www.thingiverse.com/thing:5258436
12x Treasure Chest (6 Silver, 6 Gold) https://www.thingiverse.com/thing:2987734/files

The great thing about this system is I've designed it so it'll be easy to add additional trays. I only designed it for what I had printed, but there's a good chance I'll be printing more so if I end up adding another tray, I'll add it here. That said, it's pretty easy to design the inserts yourself, so feel free!