Summer Collectifun is the summer event in Shakes & Fidget. For a specific period of time, you get three tasks from the bartender in the tavern every day which you need to complete.
You get 5, 10 or 15 points for every task. The goal is to collect a minimum of 200 points at the end of the event to gain a legendary gem.
On the way to the goal there are three intermediate goals: you'll get gold for 50 and 100 points (scales with your level), and for 150 points you'll get 100 hourglasses.
In total, more than the 200 points needed for the final reward can be collected, so you do not have to complete all tasks.