Colossal Cave Adventure (1976)

Browsing the code, I've never seen this form of goto:

   GOTO(1100,1004,1013,1020,1004,1004)(IKIND+1)

I just looked it up. It's a multi-way branch: GOTO(label_1, label_2, label_3, etc.), integer_expression.

If the integer value is 1 (not zero), control flow transfers to label_1, if the value is 2, it transfers to the second label, etc.

Interesting! It's like a simplified switch statement.