Chongzhen Simulator — Before Coal Mountain: AI Ming Dynasty History Strategy Game | Play Online

Play Chongzhen Simulator — Before Coal Mountain, a free browser AI history strategy game set in the final years of the Ming Dynasty. Live LLM narrative, eight historical characters, eight realm tracks, and four chapters leading to the fall of Beijing. No download needed.

Final Product: Chongzhen Simulator — Before Coal Mountain

Cover

Game cover: the Chongzhen Emperor stands beneath the crooked tree on Coal Hill at dawn, the Forbidden City fading into mist — generated by GPT Image 2 in 16:9

Gameplay

Actual gameplay: as the new emperor, palace lamps cast shadows like wet ink across the golden brick floor — Liaodong war reports, Shaanxi famine, and court memorials pile onto the desk at once

Gameplay

Actual gameplay: as Li Zicheng, dust covers the far mountains while starving refugees sleep in a ruined temple — grain stores are empty and morale is as thin as the rice in the pot

Gameplay

Actual gameplay: Chapter I "New Reign, Old Webs" — decide whether to purge, appease, centralize, or wait, with eight realm tracks watching every move

Chongzhen Simulator — Before Coal Mountain drops you into the final seventeen years of the Ming Dynasty. You can sit at the vermilion desk of the Qianqing Palace as Zhu Youjian, weigh every memorial while the treasury empties; you can stand on the walls of Ningyuan with Yuan Chonghuan, watching the banners gather beyond the frontier; or you can march with Li Zicheng from the famine plains of Shaanbei toward the gates of Beijing.

Nothing here is a fixed script. An AI storyteller writes every scene and every character in real time, and eight realm tracks — Court Cohesion, Treasury, Frontier, Revolt, Later Jin pressure, Imperial Suspicion, Inner Court Control, and Legitimacy — bend with every decision you make. The ending of the dynasty is written, but its shape, its cost, and its victims are yours to decide.

Play it now: Chongzhen Simulator — Before Coal Mountain →

Game Features

Live LLM Narrative — Every scene, every reply, and every character — the emperor, Wang Chengen, Yuan Chonghuan, Li Zicheng, Hong Taiji — is written in real time by an LLM as you play. No two descents toward Meishan unfold the same (deepseek-chat real-time narrative).
Eight Historical Figures, One Board — Play as eight real figures of the Chongzhen court: the emperor, his eunuch, the Liaodong commander, the Shanhai Pass general, the rebel leader and his strategist, and the Later Jin emperor and regent. Each has a different opening scene and a different map of loyalties.
Eight Realm Tracks — Court cohesion, treasury reserves, frontier stability, rebel momentum, Later Jin pressure, imperial suspicion, inner court control, and legitimacy all tick up and down with your edicts. Keep two lifelines of the realm viable before Meishan becomes the only answer.
Four Chapters to the Fall — The campaign unfolds across four chapters: New Reign Old Webs, Liaodong Pay and the Border Wall, Hungry People and Iron Riders, and Before Meishan — each with its own milestones and turning points.
Free-Form Historical Decisions — Type any action: order a purge, grant relief grain, pay the Guanning army, open the granaries, or send a secret envoy. The AI reads your intent and resolves the consequences against the historical record.
Branching Endings — Hard Restoration, early collapse, or a fall you reshape — ending conditions are computed from your track values and milestones. History keeps its outline; the cost and the shape of the collapse are yours.

Character Sprites

Sprite

Zhu Youjian — the Chongzhen Emperor — Grand Ming Son of Heaven. Diligent, sensitive, exhausted yet stubborn — trying to stitch a cracked empire back together. (transparent PNG cutout)

Sprite

Wang Chengen — Director of the Inner Court. Cautious, loyal, silent — the eunuch who shields the emperor from the first wind that breaks. (transparent PNG cutout)

Sprite

Yuan Chonghuan — Grand Coordinator of Liaodong. Decisive and sharp, standing at the windy edge of the frontier where the storm swallows the boldest. (transparent PNG cutout)

Sprite

Wu Sangui — Garrison Commander of Shanhai Pass. Caught between the capital, the steppe, and his family — every step walks a knife edge. (transparent PNG cutout)

Sprite

Li Zicheng — Leader of the Chuang rebel camp. Ambition grown from hunger — it can light a fire, and it can consume the flame. (transparent PNG cutout)

Sprite

Niu Jinxing — Strategist of the Chuang camp. He builds a new order with the pen, the ledger, and a read on the cracks in men. (transparent PNG cutout)

Sprite

Hong Taiji — Emperor of the Later Jin. Patient, composed, master of waiting until the enemy backs itself into a corner. (transparent PNG cutout)

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Dorgon — Prince Regent of the Later Jin. Sharp, shrewd, fast — he seizes the instant of another man’s hesitation. (transparent PNG cutout)

Production Process Breakdown

Stage 1: World Buildingclaude-opus-5
AI receives a one-line seed — "Create a world called World Simulator; I will add the entities myself" — and builds the World Simulator stage. The Chongzhen campaign then packs the late Ming world into 8 historical characters, 4 chapters, 8 realm tracks, and a full fate graph of milestones and ending rules.

Stage 2: Game Design & Artgpt-image-2
AI designs the game from the campaign: writes the story rules, designs chapter flow and action profiles, and generates all art — the 16:9 cover, the scene backgrounds in Chinese ink-wash style with rice-paper texture, and the eight character sprites. Each sprite was generated as a full portrait on a plain background, then cut out to a transparent PNG via BiRefNet.

Stage 3: Build & Publishdeepseek-chat
Game built and published with one click, instantly shareable online. A live LLM (deepseek-chat) improvises every line of dialogue in each character’s voice — emperor, eunuch, general, rebel, and regent — as you play, and generates in-game scene art on demand.

Scene Backgrounds

Qianqing Palace at night — scene background

The Qianqing Palace in lamplight — the emperor at his desk while rows of officials wait in the night courtyard

Liaodong frontier panorama — scene background

The Liaodong frontier — walls, watchtowers, and the banners of the Later Jin gathering beyond the border

Shanhai Pass panorama — scene background

Shanhai Pass — the hinge between the capital and the steppe, where Wu Sangui commands the Guanning army

Shaanbei famine land panorama — scene background

The Shaanbei highlands — yellow dust over famine fields, ruined temples, and the first sparks of revolt

Court debate panorama — scene background

A court debate under the palace eaves — factions gather before the audience is called

Secret memorial panorama — scene background

The secret memorial reaches the desk — the first real triage of the reign begins

Asset Prompts

Coal Mountain Dawn Promptgpt-image-2
"The Chongzhen Emperor stands alone under the crooked tree on Coal Hill; before dawn the Forbidden City sinks into mist behind him — ink-wash and gongbi painting combined, bleak and sorrowful historical atmosphere, cold tones, cinematic light" — the Coal Mountain Dawn artwork, generated 16:9.

Qianqing Night — First Person Promptgpt-image-2
"16:9 late-Ming historical illustration, Chinese ink-wash painting with rice-paper texture. First-person view from the Chongzhen Emperor’s eyes over the Qianqing Palace night study: the lower edge of the frame shows a yellow dragon-robe cuff and a pale hand gripping paper stained with cinnabar ink. A Shaanxi secret memorial lies open on the desk, coarse yellowed paper, hasty bleeding characters... Wang Chengen in the eunuch’s blue robe stands half-hidden in lamplight, loyal and restrained..."

Qianqing Night — Dialogue Promptgpt-image-2
"16:9 late-Ming historical illustration, Chinese ink-wash painting with rice-paper texture. First-person view from the Chongzhen Emperor’s eyes over the Qianqing Palace night study. The desk holds the Shaanxi memorial with a fresh vermilion endorsement for 100,000 taels of relief silver... the image must include a clear dialogue bubble: Wang Chengen: “Your Majesty, the Ministry of War kneels in the corridor — the Liaodong dispatch is an eight-hundred-li urgent express...”"

Opening Panorama Promptgpt-image-2
"Panorama / ultra-wide composition, emphasizing space, terrain, architecture and the whole picture; figures may be smaller... 16:9 late-Ming historical illustration, Chinese ink-wash with rice-paper texture, vermilion palace walls, cinnabar war dispatches, indigo mountains, cold grey snow night, low-saturation historical scroll feel. Content: The Lamplight of the Qianqing Palace..."

Why Choose Neta Studio

Professional — 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 V3

One-click generation — Officially tuned skills drive every step: world building, character design, art generation, game packaging. World fork resource sharing lets you inherit characters, locations, and events from any public world, then rewrite what you want.

Community-first — Users build unlimited worlds, all public worlds can be forked, remixed, reimagined. The Discord learning community provides tutorials and real-time support — from your first world to your first game.

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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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World: World SimulatorType: History Strategy Simulation8 characters · 6 scene backgrounds · 1 cover · 4 chaptersShare: Play →