The Croft Protocol — Croft Manor Field Assistant Interactive Game
Final Product: The Croft Protocol
Cover
The 16:9 key-art cover generated by GPT Image 2: Lara Croft in the study of Croft Manor at dusk, the glowing Marrow Key in her palm, with the flooded Yucatan temple rising behind her.
Gameplay
Live gameplay: the title screen — "Croft Manor / Field Assistant / The Marrow Key", with the Start New Game call-to-action.
Gameplay
Live gameplay: the opening — "Rain ticks against the leaded windows of Croft Manor. You are early on your first day, still holding the letter that got you the job."
Gameplay
Live gameplay: "You must be the new assistant. Punctual — good. We have a temple to rob. Archaeologically speaking." Three live choices, or type any action.
Croft Manor, dusk. Rain ticks against the leaded windows. You are early on your first day — Lara Croft’s new field assistant — and the study smells of old paper, gun oil and tea.
The Croft Protocol is a playable, AI-narrated adventure game. Lara’s expeditions have outgrown one person, so she has hired a field assistant: you. On day one, a lead arrives that cannot wait — the Marrow Key, a relic hidden in a flooded temple older than any map, said to unlock the Hall of the First Dawn. And word is Madame Vesper’s crew is already at the site. The job is simple: keep up, keep your head, and bring the key home before she does.
Type any action, choose your path, and the live LLM writes the next scene as you play — narrating Lara, Winston and Vesper, remembering your decisions and carrying them through the whole expedition. AI enabled, right in your browser.
Play it now: The Croft Protocol →
Game Features
- Live LLM Narrative — Every scene, line of dialogue and twist is written live by the LLM as you play. The deepseek-v4-flash narrator voices Lara, Winston and Vesper, remembers your choices, and reacts to whatever you type next — no two expeditions play out the same.
- Free-Form Action Input — Type any action at the prompt and the story resolves it: study the mission board, question Winston, review the dossier or bluff your way past a rival. If you can type it, Lara can try it.
- Choice-Driven Scenes — Key moments present live choices that shape the expedition — from how you greet Lara on day one to who reaches the Marrow Key first.
- A Cast of Five Sprites — Lara (neutral, wry and tense), Winston the butler and Madame Vesper the rival appear as full-body transparent sprites, cut from white-background renders with BiRefNet for the AVG stage.
- Five Painterly Scene Backgrounds — The study of Croft Manor at dusk and four flooded Yucatan temple interiors — the gate, the hall and the sanctum — generated in a cinematic semi-real painterly adventure-game style.
- Browser Playable, AI Enabled — Runs directly in your browser, no download needed. Save your progress, open the cast panel and the turn log, and flip AI writing off any time.
Character Sprites
Sprite
Lara Croft — neutral. Calm, composed, relaxed but ready (transparent PNG, cut for the AVG stage).
Sprite
Lara Croft — wry. One eyebrow raised, a faint knowing smirk, arms relaxed at her sides.
Sprite
Lara Croft — tense. Jaw set, eyes narrowed, hand hovering near her holster, weight in a ready stance.
Sprite
Winston — the Croft Manor butler, dignified in a black three-piece suit with a silver pocket-watch chain.
Sprite
Madame Vesper — the elegant rival in an ivory safari suit, gold serpent pendant, predatory smile.
Production Process Breakdown
Stage 1: World Buildingclaude-opus-5
From a one-line seed prompt — "Join Lara Croft as her field assistant, managing missions from Croft Manor" — the AI builds the world: a dynamic archaeological sandbox of ancient ruins, puzzles and secrets, with the Marrow Key expedition at its heart.
From a one-line seed prompt — "Join Lara Croft as her field assistant, managing missions from Croft Manor" — the AI builds the world: a dynamic archaeological sandbox of ancient ruins, puzzles and secrets, with the Marrow Key expedition at its heart.
Stage 2: Game Design & Artgpt-image-2
The AI designs the game and generates every asset: the 16:9 key-art cover, five painterly scene backgrounds (Croft Manor at dusk and four flooded Yucatan temple interiors), and the full transparent sprite set for Lara, Winston and Vesper — each sprite background-removed to transparent PNG via BiRefNet.
The AI designs the game and generates every asset: the 16:9 key-art cover, five painterly scene backgrounds (Croft Manor at dusk and four flooded Yucatan temple interiors), and the full transparent sprite set for Lara, Winston and Vesper — each sprite background-removed to transparent PNG via BiRefNet.
Stage 3: Build & Publishdeepseek-v4-flash
The game is built and published with one click and is instantly shareable. The live LLM (deepseek-v4-flash) narrates the expedition in real time as you play — voicing Lara, Winston and Vesper, remembering your choices and reacting to every action you type.
The game is built and published with one click and is instantly shareable. The live LLM (deepseek-v4-flash) narrates the expedition in real time as you play — voicing Lara, Winston and Vesper, remembering your choices and reacting to every action you type.
Scene Backgrounds
BG
Croft Manor at dusk — the title background, warm windows against blue-violet evening mist, quiet dark sky for the title copy.
BG
The grand study of Croft Manor — books, relics, a green banker’s lamp and tall leaded windows. The real in-game opening background.
BG
The Marrow Gate — a flooded jungle temple entrance in the Yucatan, moss-swallowed stone and carved serpent pillars.
BG
The Marrow Hall — the flooded inner hall, towering columns in shallow dark water, glowing glyphs reflected below.
BG
The Marrow Sanctum — a stone dais rising from bioluminescent turquoise water, the bone-white key on its pedestal.
Asset Prompts
Croft Manor Dusk Title Background Promptgpt-image-2
"Croft Manor at dusk, wide establishing shot, a grand English manor house on a rise, warm golden light glowing from the tall windows, deep green ivy, soft blue-violet evening mist, dramatic clouds catching the last amber light, moody and inviting, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo. Keep the upper-center sky relatively quiet and dark for title copy."
"Croft Manor at dusk, wide establishing shot, a grand English manor house on a rise, warm golden light glowing from the tall windows, deep green ivy, soft blue-violet evening mist, dramatic clouds catching the last amber light, moody and inviting, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo. Keep the upper-center sky relatively quiet and dark for title copy."
Manor Study Background Promptgpt-image-2
"The grand study of Croft Manor at dusk, interior, dark wood-paneled walls, floor-to-ceiling shelves packed with books and relics, a large antique oak desk with an open expedition map and brass instruments, green banker's lamp casting warm amber pools of light, tall leaded windows with deep green drapery, cool blue dusk light outside, cozy yet serious, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
"The grand study of Croft Manor at dusk, interior, dark wood-paneled walls, floor-to-ceiling shelves packed with books and relics, a large antique oak desk with an open expedition map and brass instruments, green banker's lamp casting warm amber pools of light, tall leaded windows with deep green drapery, cool blue dusk light outside, cozy yet serious, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
Marrow Gate Background Promptgpt-image-2
"A flooded jungle temple entrance in the Yucatan, a moss-swallowed stone doorway half-sunk in still teal water, massive carved serpent pillars, hanging vines and dripping ferns, shafts of misty green light through the canopy, water lilies, ancient weathered stone with faint carved glyphs, mysterious and ominous but beautiful, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
"A flooded jungle temple entrance in the Yucatan, a moss-swallowed stone doorway half-sunk in still teal water, massive carved serpent pillars, hanging vines and dripping ferns, shafts of misty green light through the canopy, water lilies, ancient weathered stone with faint carved glyphs, mysterious and ominous but beautiful, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
Marrow Hall Background Promptgpt-image-2
"The flooded inner hall of an ancient temple, wide chamber with towering weathered columns standing in shallow dark water, stone causeways, broken ceiling letting in shafts of pale light, faint glowing glyphs on the walls reflecting in the water, deep teal and green tones with warm light motes, atmospheric and vast, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
"The flooded inner hall of an ancient temple, wide chamber with towering weathered columns standing in shallow dark water, stone causeways, broken ceiling letting in shafts of pale light, faint glowing glyphs on the walls reflecting in the water, deep teal and green tones with warm light motes, atmospheric and vast, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
Marrow Sanctum Background Promptgpt-image-2
"The inner sanctum of a flooded temple, a stone dais rising from a pool of softly glowing turquoise bioluminescent water, an ornate carved pedestal at the center holding a faintly luminous bone-white key shape, walls covered in intricate carved murals, beams of light from a collapsed ceiling, reverent and eerie, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
"The inner sanctum of a flooded temple, a stone dais rising from a pool of softly glowing turquoise bioluminescent water, an ornate carved pedestal at the center holding a faintly luminous bone-white key shape, walls covered in intricate carved murals, beams of light from a collapsed ceiling, reverent and eerie, no people, cinematic semi-real painterly adventure-game art style, rich color, confident composition, no text, no watermark, no logo."
Lara Neutral Sprite Promptgpt-image-2
"Full-body visual novel character sprite source image for AVG runtime. One character standing upright in a natural neutral pose, entire body visible from head to shoes, centered with generous margin around hair, hands, clothing, and feet. Plain pure white matte background (#ffffff) for clean cutout; no scenery, no interior, no exterior, no decorative backdrop, no gradient, no shadowy environment, no checkerboard transparency pattern, no pixel grid, no fake transparent background. Cinematic semi-real painterly adventure-game art style matching a warm khaki-and-amber palette, soft key lighting, realistic proportions. No text, logo, watermark, frame, card border, or UI. Lara Croft, an athletic woman in her early thirties, shoulder-length chestnut hair in a low ponytail, khaki tank top, cargo trousers, leather utility belt with holsters, fingerless gloves, a small climbing pick at her hip, confident grounded stance, calm composed expression, eyes forward, relaxed but ready."
"Full-body visual novel character sprite source image for AVG runtime. One character standing upright in a natural neutral pose, entire body visible from head to shoes, centered with generous margin around hair, hands, clothing, and feet. Plain pure white matte background (#ffffff) for clean cutout; no scenery, no interior, no exterior, no decorative backdrop, no gradient, no shadowy environment, no checkerboard transparency pattern, no pixel grid, no fake transparent background. Cinematic semi-real painterly adventure-game art style matching a warm khaki-and-amber palette, soft key lighting, realistic proportions. No text, logo, watermark, frame, card border, or UI. Lara Croft, an athletic woman in her early thirties, shoulder-length chestnut hair in a low ponytail, khaki tank top, cargo trousers, leather utility belt with holsters, fingerless gloves, a small climbing pick at her hip, confident grounded stance, calm composed expression, eyes forward, relaxed but ready."
Why Choose Neta Studio
Professional — A cloud harness system supports the full workflow from world building to game publishing, all running in the cloud with no local setup. Stable access to the latest models: Claude Opus 5 · GPT Image 2 · DeepSeek V4 Flash.
One-click generation — Officially tuned skills drive every step: world building, character design, art generation and game packaging, with world fork and resource sharing built in.
Community-first — Users build unlimited worlds; every public world can be forked, remixed and reimagined by the community.
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This game was generated by Neta Studio AI from a single sentence. The world took minutes. The game took minutes. You can do it too — adapt this world or start fresh from any IP. No coding required, free to start.
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