Counter Slayer

What is Counter Slayer?

Counter Slayer designs box and tray inserts for board games and war games. You set the inner size of the game box, define your counters (square, hex, circle, triangle or your own sizes), card sizes and standees, and build layers of trays and lidded boxes. The tool packs the trays into the box for you, and you can also drag them into your own layout. A 3D view with an explode slider shows how everything stacks.

Tray types include counter trays with stacks laid flat or on edge, cup trays for dice, tokens and meeples, card draw trays, card dividers, card wells and standee trays. Boxes get snap-to-close lids and an optional honeycomb pattern that saves filament, and tolerances are built in. You can load ready-made projects for D-Day: Omaha Beach, Burning Banners and Witchcraft, and import or export a project as a JSON file.

Export gives the STLs or one 3MF with all boxes, lids and trays laid out on the build plate, plus a PDF reference that shows which counters go in which stack. It is free with no account. The README says the STLs you generate are yours and can be hosted or sold without permission. The source is public on GitHub under a functional source license that becomes Apache 2.0 after two years. It suits war gamers and board gamers with a lot of counters to sort.

What you can make

• Counter trays for war games
• Card draw and divider trays
• Lidded boxes for groups of trays
• Cup trays for dice and meeples
• Standee trays

How to use Counter Slayer

1. Enter the inner size of your game box
2. Add your counters, card sizes and standees
3. Build trays and boxes in layers and press Regenerate
4. Export the STLs or the 3MF, plus the PDF reference