This is a set of removable inserts for Imperium: Horizons, incorporating the Legends and Classics games as well.
Internal dimensions: 291 x 291 x 92mm
It supports sleeved cards.
Just note, that there is a gap of 10mm between the top of the rulebook and the box lid. You can fill this gap with a 291x291 square of EVA or packing foam. I used the Horizon punchboards that I didn't unpunch (because I had all the tokens already from Legends/Classics), and placed them in the bottom of the box, and stacked the inserts on top.
UPDATE: 17/11/2024
I've just resleeved this with premium thickness sleeves (200 micron), and I can confirm that it just fits. I didn't sleeve the extra Unrest, Solstice and Empire cards from Legends/Classics.
Horizons_ActionTokens_Tray.stl | 1.6MB | |
Horizons_AI_Cards_Tray.stl | 436.0KB | |
Horizons_Card_Tray1_x2.stl | 564.1KB | |
Horizons_Card_Tray2_x2.stl | 546.2KB | |
Horizons_Dice_Tray.stl | 871.6KB | |
Horizons_GameBoard_Tray.stl | 762.4KB | |
Horizons_Resource_Tray_x3.stl | 1.6MB | |
Horizons_TradeTokens_Tray.stl | 1.6MB |