It wasn't an easy task, but the jury has managed to decide the winners:
1st prize: Ackmania (Operation Deadnex) v1.2 by AckCon 2014 Team
2nd prize: Maggots by Wjbender

Winners, please pm me your contact info (name, address, email). I need to send the data to JCL, so that he can email you the Gamestudio license keys.