Is there any limit on the number of entries each participant can submit?

I didn't find anything in the rules. 

Under the "How to participate" section in https://itch.io/jam/game-off-2017 there is the following line.

> You can participate by yourself or as a team. Multiple submissions are fine. And of course, the use of open source software is encouraged.

 I read that as there is no explicit limit on the number of entries.

Hi Kayvan - thanks for asking! There are no rules here other than "don't go crazy". 1 - 10 entries sounds reasonable. 50+ and I'd be thinking there's some automation, procedural  generation, and / or cheating  going on ;)

Just as an FYI, people have come up with fun ways to work in multiple games into the same entry e.g. http://js13kgames.com/entries/26-games-in-1.

Good luck!