Information
Here is a quick way to change gravity for various parts of your project. Watch the video tutorial to learn how to change gravity for one level, or follow the steps in this article.
Change gravity for the whole project
Go to Edit > Project Settings > Physics > Constants. Find Default Gravity Z and change the value. The default gravity value is -980. The reason for this particular value is because Earth's gravity is approximately 980 centimeters per second squared. Unreal's default gravity points downward on the Z-axis, so it is usually a negative number. A smaller magnitude gives floatier gravity, and a larger magnitude gives heavier gravity.
Change gravity for a level
Open Window > World Settings. The World Settings panel controls settings for the current level, and you can use its search box to find a setting quickly.
Search for Gravity, then enable the level's gravity override, and set the gravity value you want. This is useful when one map needs moon gravity but the rest of the project should stay normal.
Change gravity for a character
Open your Character Blueprint, then select the Character Movement component.
Find the Gravity Scale parameter and modify the value. This is a multiplier applied to the character's gravity.