Octin Prison is a font that can be used for a variety of designs, including fun ones.The font subfamily is Regular.It was designed by Ray Larabie and is free to use for personal projects.
The font style may change depending on the letters used. Some fonts do not support special characters and were created for a specific purpose. The concept of each letter can be seen in the image below. You can also check the typography of all the letters or take an online test before downloading the font.
