DikuMud was copyrighted with the US Copyright Office:
1. Registration Number: TX-4-424-366
Title: DikuMud : program / by Sebastian Hammer, Michael Seifert, Hans-Henrik Staerfeldt, Tom Madsen, Katja Nyboe.
Note: Printout (50 p.) only deposited.
Claimant: [Author and claimant] Katja Nyboe, acTom Madsen, acSebastian Hammer, acHans-Henrik Staerfeldt, & acMichael Seifert , 1969-
Created: 1990
Published: 1Jun90
Registered: 20May96
Title on © Application: DikuMud gamma; Diku mud.
Miscellaneous: C.O. corres.
This of course means that US copyright law applies.
If you accept donations through your web site, and do not advertise for donations on your mud nor offer rewards for those donations, the donations fall outside the scope of the license. This is what KaVir meant by his statement.
Darrik Vequir
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