Players use up a key too early and can no longer finish the game

In a haunted house with one key and two locked doors, the order matters, and a player who picks the wrong door is stuck without knowing it. Here is a search that tries every order, tells you whether the game can be won and counts the situations from which it cannot.

Why this works

A game is only fair if every situation a player can reach still leads to the end. Checking what you own at the end misses the order of choices. Trying every order shows the dead ends before a player finds them.

When not to use it

It does not scale to a huge open world with hundreds of items and freely moving characters, since the number of situations explodes. There, check small parts one at a time, or design so the key items cannot be lost.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• 61 lines of example code with 5 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Players use up a key too early and can no longer finish the game" (read_entry key-used-up-and-game-cannot-be-finished) 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