http://www.gamasutra.com/blogs/JoelBurgess/20130501/191514/Skyrims_Modular_Approach_to_Level_Design.php http://wiki.polycount.com/w/images/7/70/Investigation_into_modular_design_within_computer_games_v1.0.pdf https://docs.unrealengine.com/udk/Two/WorkflowAndModularity.html https://80.lv/articles/producing-dragon-age-inspired-environment/