Well i guess some of you already know about this site but here it is anyway, it got alot of articles written about level design, by both pro and newb artists. http://level-design.org/ It has, amongst many other articles, a relatively new article wirtten by the level artist from the witcher 3, great info on how to plan a big open world. Theyre quite the team though but still helpful. I also found this very article intresting, about creating a small and moody level in UE4. the artist shares alot of useful info and also tools to make everything easier down the line. Most can be applicable in Torque/Beamng Worls editor. https://80.lv/articles/jakob-bergersen-autumn-scene-in-ue4/ --- Post updated --- Also like to add: http://www.80.lv Check 'Articles' or search for 'open world' or 'environment' or whatever suits you .