About Creating Levels

Do you create the levels one by one while making hyper casual games or do you write scripts to do that(using spawn points etc.) or do you have a tool for this?

My game has one scene for the menu and one scene for the game levels, and load the level data from a text file for each level. I have made an external level editor that is graphical but you can write the text-file your self also. Example:

*MAPTYPE MISSION
*MAPSIZE  30 50
*MAXPLAYERS 2
*PLAYERSTARTPOS   771  1424
*PLAYERSTARTPOS   819  1431
*ENEMY 0
  *ANGLE         90
  *FIREINTERVAL  800
  *SPEED         0
  *NUMWAYPOINTS  1
  *WAYPOINTSX     191
  *WAYPOINTSY    1312