Requirements:
XenForo 2.2.0+

Adds new thread type for competitions with up & down voting.

Features:
New forum & thread type with post voting support (upvote & downvote)

• General discussion forum type support
• Sort posts by vote score
• Node-specific permissions
• Thread option to set winners count
• Thread option to sort posts by vote score by default
• Thread option for public display of post votes
• Thread option to start and close competition after exact date or relative unit (days, weeks, months)
• Thread option to disable thread replies on competition ends
• Thread option to limit posts which participate in the competition
• Thread option to limit maximum votes for posts in thread by user
• Thread option to disable downvotes

and more...