The challenge is simple, complete four games in June. They can be games you started in May 2013, or December 1997, it doesn't matter, just get them done by June.
Tools:
Backloggery
How Long to Beat
GAF Backlog Blitz Thread
Past Threads:
Four in February, take a bite out of your backlog
Three in March. Destroyin' Backlogs One Thread at a Time
Two in April. Destroyin' Backlogs HD Edition
Three in May - Backlog Returns 3D
My List:
Alan Wake (PC)
Pokemon: HeartGold (DS)
Just Cause 2 (PC)
Advance Wars (GBA)
Tools:
Backloggery
How Long to Beat
GAF Backlog Blitz Thread
Past Threads:
Four in February, take a bite out of your backlog
Three in March. Destroyin' Backlogs One Thread at a Time
Two in April. Destroyin' Backlogs HD Edition
Three in May - Backlog Returns 3D
My List:
Pokemon: HeartGold (DS)
Just Cause 2 (PC)
Advance Wars (GBA)
New list:
Alan Wake(PC)
Civilization V (PC)
Pokemon: HeartGold (DS)
Advance Wars 2 (GBA)