One of the driving forces behind crowdfunding is setting and achieving targets.

To make the most of this, ambitious entrepreneurs can break their campaign into different funding goals, with the first goal being the minimum that needs to be raised, and then adding stretched goals, each representing an added value to the final product, such as additional material in a documentary or added features and levels to a video game.

For example, Revolution Software raised $771,560 for the video game Broken Sword: The Serpent's Curse - almost twice as much as their minimum goal of $400,000 using stretch limits.

To get from $400,000 to $600,000 added locations in South America and Middle East and from there added new characters to get to $700,000.