Vigil, the eternal morally vigilant programming language
created at Jan. 3, 2013, 8:05 a.m.
Jelly is a recreational programming language inspired by J.
created at Dec. 4, 2015, 4:57 a.m.
A concise language for sketching ASCII art.
created at Oct. 3, 2016, 12:28 a.m.
An esoteric programming language with prefix-free brackets
created at Aug. 4, 2020, 8:24 a.m.