Make a crafting lottery stop handing out the part you already own

The player opens a salvage crate and gets the same helmet for the fourth time, while the boots never show up. It feels rigged even though it is random. This entry draws from what the player does not own yet, and turns the extras into something useful once the set is complete.

Why this works

Random draws feel rigged when luck repeats itself. People remember the fourth identical helmet far longer than ten different finds. Drawing only from what is missing keeps chance but removes the sting, and paying out something useful when everything is owned means no drop is dead.

When not to use it

Do not filter out what is owned when the thrill is collecting duplicates, as with cards that are traded or upgraded by merging copies. Keep the draw plain there, and make duplicates useful through trade or fusing.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 4 common mistakes and the fix
• 18 lines of example code with 4 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Make a crafting lottery stop handing out the part you already own" (read_entry mystery-box-prefers-parts-not-owned) in my game. Build it step by step, and show me how you checked that it works.

Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP