One of the biggest draws in any Runouw game is the Level Designer. These allow you to make your own levels with the provided game engine, and as each new game comes out, the level designer modes are getting more complex and flexible. You can really let your imagination run wild on these things, and best of all, the Forums give you a place to show off your skills, with both the Level Portals and Level Designer Contests.

Games with Level Designers

Last Legacy: Chapter 1

Important Links
Last Legacy Level Portal: Wiki Page - Original Portal - New Site Portal
Last Legacy LD Guide

Last Legacy: Null Space

Super Mario 63

Important Links -
Super Mario 63 Level Portal Wiki Page - Site Portal
Super Mario 63 LD Guide