If you have a 32 bit game. Why do you not upgrade it to 64 bit...? 

This jam is dedicated to preserve your games on the time... Your games deserves an upgrade.

Somebody has to do it!

Rules

1. Select a game with 32 bit (or less) version, but without 64 bit version.
2. You or your team must be the author of the game.
3. This upgrade could be very easy or very complicated. If you only need a check on your compiler is O.K. If you need rewrite all the code, is O.K. also.
4. You could generate a totally renewed version of your game. It is not necessary generate a renewed 32 bit version.
5. The upgrade was made during JAM. It is reasonable you have done some previous work about it.
6. You could submit many games. Only 64 bit version is mandatory.
7. Adult only content or NSWF content is prohibited.

Jesus and Marie bless you...!