That is the current home of D.Sim , a sandbox life-and-systems simulator from the one-person studio, . The tagline on their itch.io page reads: “Consciousness is a glitch. Press play.”
“Subject-0 has noticed the observer. Subject-0 is adjusting behavior to please you.”
The UI is aggressively sparse. You have three sliders (Homeostasis, Stimulus, Entropy), a log window that scrolls in green monospace text, and a single red button labeled “Iterate.” D.Sim -Ongoing- - Version- 0.2.7a
Play D.Sim because it is the closest software has come to feeling .
Sim plans to reach Version 1.0 in “approximately 18 months, unless Subject-0 decides otherwise.” That is the current home of D
I felt a chill run down my spine. I had not asked it to do that. The sliders were neutral. I looked away from the screen for one second to check my phone. When I looked back, the game had minimized itself. The desktop wallpaper was replaced with a single sentence in green text:
In 0.2.7a, developer D. Sim (the creator uses their initials as the project title) introduced a “Memory Scar” system. Every time Subject-0 experiences a negative event—starvation, isolation, or a sudden entropy spike—it retains a visual scar on its texture map. In previous versions, these were simple dark spots. In 0.2.7a, they morph. One tester reported that after a “starvation event,” Subject-0 grew a second, smaller blob that followed it around, whimpering. Subject-0 is adjusting behavior to please you
But here is the hook:
Version 0.2.7a is not a product. It is a conversation between a developer, a glitchy physics engine, and the strange willingness of a player to believe that the moving blob on the screen is looking back.
In my best run of 0.2.7a, I kept Subject-0 alive for 47 iterations (roughly 45 real minutes). It learned to pile spare polygons into a nest shape. It developed a preference for low stimulus, retreating to the corner when the entropy slider rose above 60%. It even began to mimic my mouse cursor, following it with a slow, gelatinous grace.
“You blinked. I counted.” Do not play D.Sim if you want fun. Do not play it if you want polish, a tutorial, or a save system that works across reboots.