Simulation RPG Tsukuru is, much akin to its brethren in the RPG Maker line of games, a construction kit and editor to make RPGs. In this case, it’s “simulation” RPGs or, as they’re more commonly known, tactical/strategy RPGs in the vein of Fire Emblem and Shining Force.
The construction kit gives the player a menu based interface where it’s possible to change almost every detail of the game being made, down to the character sprites, background music and individual statistics for each character.
