An awesome competition run by @hivebuildercomps on the hive blockchain.
All you need is a hive account which most people have if you dont you can sign up for free.
All tokens are hive-engine based
https://ecency.com/leofinance/@hivebuildercomps/crypto-hacker-scv-edition-2
It is a simple Higher or Lower price prediction competition.
The first round finished with the winner taking appox $40 worth of tokens.
Not bad for a free to play competition.