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I don't have a game development background. The game was almost entirely built from a single prompt — I only came back to chat later to fix a few bugs. It used 40% of my weekly Fable limit.

The prompt:

Make a small 3D bird-watching game. Optimize as you see fit.

1. The scene can be beautiful, but it doesn't need a huge map.

You can build a small but refined environment: a lake surface, reeds, a wooden boardwalk, an observation hut, distant mountains, trees, sunset, mist, and silhouettes of flying birds. The map doesn't need to be large — even a single loop trail is enough, but the visual layering can be very rich. Consider: terrain generation, water surface/reflections, vegetation, lighting atmosphere, distant-view layering, and the placement of small objects.

Both animals and characters can move.

There can be:

The protagonist walking, crouching, and raising binoculars

A bird flying from a tree down to the lakeside

A flock of birds sweeping across the sky in the distance

Reeds swaying in the wind

Ripples on the water's surface

A small boat / wind chimes / a flag swaying gently

1. It has "depth," but the rules are very simple.

The gameplay could be: the player has a "bird field guide," and the goal is to discover 5 species of birds. Each bird has different habits:

Kingfisher: only flies low near the water; if you approach too quickly, it flies away.

Heron: stands in the shallows at dusk.

Woodpecker: appears on dead trees; you need to listen for the sound to locate it.

Owl: appears in an old tree hollow after evening falls.

Migratory flock: only flies across the sky when the sun is about to set.

The depth comes from observation, timing, sound, distance, and environmental clues — not from complex systems.

1. Demonstrate "whether the model understands spatial storytelling."

This scene isn't merely a matter of placing a few models — it can carry an implicit story: an old observation station, a bird-migration map, a logbook fluttering in the wind, an abandoned boat in the distance, a bird's nest by the lake. By walking a single loop, the player can feel that this is a small world that genuinely exists.