• Foreword
• Commonly Experienced Bugs
  • Player Spawning
    
  • Uploading levels to steam workshop
• Ways to efficiently work on levels
  • Scale of Structures
    
  • Keeping it a multiple of 5
    
  • Covering exposed areas
    
  • Pre-Planning
• Closure

This is not a guide on the basics of level creation for inertia, for that please read the developer's guide.
I'm writing this guide to point out not quite known bugs, and efficient ways to map out levels. This is completely written based upon my own experiences creating levels so there may be differences of opinion and/or better ways to do some things.

As of 2022-02-10, the Player Start entity in the object spawning menu does not work when a level is reloaded. When you load your level, it will spawn you to wherever the Player Start entity has been placed, but when you reload your character, it spawns you at the coordinates (0,0,0). To avoid this issue, I usually set my spawn platform as (0,0,-150), that way there is enough headspace to fall onto the platform and avoid being glitched through it.


As of 2022-02-10, the feature to upload levels onto the steam workshop is broken. It is entirely impossible to upload levels onto the steam workshop. The only way to share your levels with others seems to be through the Inertia discord server[discord.gg].
To access the file of the level you have created browse to:
AppData->Local->Inertia->Saved->SaveGames

Since the Inertia map editor lacks some basic features such as copy pasting objects, we have to make do with what we have.
Starting out, I would recommend newbies to make multiple simple enclosures such as the one below to get the hang of the level editor.
This will develop muscle memory for the basic features of the level editor and will increase your speed significantly in the grand scheme of things.

• Scale of Structures
  It is important to keep in mind that one solid 1x1x1 block has a scale of (0.5,0.5,0.5) in the level editor, this can help when trying to make structures of a specific length, such as a jumping structure of exactly 5x3x1 blocks, which using simple mathematics would mean the scale in the map editor would be (2.5,1.5,0.5).
  
• Keeping all values a multiple of 5
  Though this might seem useless, keeping ALL values a multiple of 5 plays a huge role in keeping everything organised and easy to expand upon. This ensures that you don't waste precious hours trying to get everything accurate to the last point just because you expanded a structure by hand until you deemed it fit, keeping it to a multiple of 5 helps you easily keep your level clean without even an inch of a structure poking out, it's as important to make sure your level looks clean from the areas that the player can see as well as the areas that the player can't see.
  
• Cover all exposed areas with invisible blocks
  It's recommended to cover all open areas that are exposed to the player with invisible blocks as often it's very easy to skip those areas using binds, LRF and Air Strafing.
  
• Pre-Plan levels
  It's often much more productive to pre-plan and create a blueprint for levels instead of just going at it in the map editor. This way you already have an idea of what it is that you're trying to create which results in a longer and more productive session of working on a level.

This guide is in a lot of way still a work in process, I will keep adding more tips and recommendations as I discover more efficient ways to develop maps. Any questions are appreciated, but I can't ensure an answer as I rarely check steam notifications.