Sunfish City - a trait swap game v0.30.6

Sunfish City is Grankor's experimental take on a rarely-explored niche: a trait-swap sandbox where you negotiate physical transformations with other characters. The premise is straightforward—you can trade attributes with people you meet, whether that's swapping body modifications, physical characteristics, or other traits. It's the kind of premise that sounds simple until you start considering the variables: who wants what, what are you willing to give up, and how do these trades cascade through your character's identity?

As an early-access HTML5 game still in active development (v0.30.6), Sunfish City leans into experimentation. The mechanics revolve around negotiation and discovery—exploring what trades are available, what NPCs desire, and how your choices reshape both yourself and the people around you. The sandbox structure means there's no fixed narrative railtrack; instead, you're free to approach the trait system however appeals to you. Grankor notes the game is progressing away from AI-generated assets toward commissioned artwork, so the visual presentation should improve over time.

The adult content here centers on transformation and body modification, with a particular emphasis on breast expansion and gender-bender scenarios. These themes are woven into the core mechanic rather than tacked on—swapping traits is the adult content framework. If you're into transformation narratives that give agency to both parties in the exchange, this offers something structurally different from linear visual novels.

Note that this is early-stage software. The wiki is admittedly incomplete, and the download version has more content than the web build due to file limits. Performance and stability will likely improve as development continues. Grankor actively seeks community feedback, making this a good fit for players who enjoy watching a game evolve.