Note that if the rules of the individual contest conflict with these standard rules, the contest-specific rule has priority.

1. Each person may only enter a single level into each contest.
2. All levels entered into a contest must be never-seen-before. This means that they can be completely new levels created for the contest, or not-yet-released levels from a future pack, but you cannot just enter a level from a pack you've already released, even if you modify it slightly.
3. Anyone caught trying to manipulate the voting or otherwise cheat will be disqualified from the contest, and may be disqualified from future contests.
4. Entries must be submitted via private message to the staff member running the contest.
5. The staff member running the contest has the final say on whether or not a level meets the contest's criteria; however, you will be informed within a reasonable timeframe if not, and will be allowed to resubmit an altered version of the level (or an entirely new level) that does meet the criteria.
6. If you are using a graphic set that is not included by default with the engine you're using, you must include a copy of it with your submission.
7. Any Lix levels entered into the contest must be single-player levels.
8. Monetary prizes are payable only via either PayPal or a major cryptocurrency (Bitcoin, Litecoin or Dogecoin; and possibly others on request). You may also ask for a purchase to be made on your behalf with the prize money directly from a website that accepts one of those options, or for it to be donated to a charity.
9. All deadline dates/times are in UTC. If you haven't customized your display settings, this is the time displayed in the top-right corner of the forums.
10. Even if a deadline has passed, entries will not close until 72 hours has passed since the last submission was received (or one week since the last submission was received, if there are less than four received entries).
11. If less than three entries have been received when entries close, the contest is cancelled.
12. During the playing phase, you may submit revised versions of your levels (for example, to remove backroutes). These should also be sent via private message to the staff member running the contest. All updated versions will be posted at the same time (if there are any). There will be three "update points" during the playing phase, of which each level may be updated on no more than two of them. Once the last update point has passed, no further updates will be accepted.
13. Any received updates will only be accepted if the updated version still meets the contest criteria.
14. Both first place and second place get a prize; they must choose two different prizes (first place gets first choice), unless a prize is specifically marked that it may be selected by both winners. In the event that only three entries are received, only first place gets a prize.
15. If the staff member organizing the contest enters a level and places first or second, they do not get a prize. The prize is not "passed on", but instead only one prize is awarded for that tournament; however as a special case, if there is only one prize available (due to only three entries being submitted), the prize is passed on to second place.
16. The winning level will be determined by a voteoff after the playing phase has ended.