SIC-1 is a single-instruction programming game. Neglect your personal life in pursuit of promotions and vague assurances of job security! Optimize your programs to rise to the top of the leaderboards! SIC Systems thanks you for your hard work! Now please return to your desk.

A=B is a programming puzzle game with only one instruction: A=B, which means replacing A with B.

Space Bear is a multi-choice text adventure typing game! Sort of. I mean, there isn't many actual choices, and the typing is more "mashing"...

BEL/S is an Elemental Firewall: a fire elemental bound with C++ code to protect a network of people and places. She can learn things, develop relationships, and even gain sapience. Or she can burn everything with fire. It's up to you.