Made with Nano Banana 2 Lite · CC0 · 9 Oct 2026

Hand-drawn

Generated from: a scene from a small video game about: # GAME DEVELOPMENT PROMPT: NUCLEAR NIGHTMARE Create a highly realistic, first-person, open-world survival horror game set in a nuclear wasteland after a devastating nuclear bomb strike. The game should feel immersive, atmospheric, dangerous, and terrifying, with realistic graphics inspired by the provided reference images. ## 1. THE SETTING The game takes place in a destroyed rural region near a secret military nuclear research base. A nuclear bomb has struck the region, destroying towns, forests, roads, and military facilities. The world is covered in radioactive dust, abandoned vehicles, ruined houses, dead trees, broken power lines, and decaying military equipment. During the daytime, thick yellow-green fog covers the landscape. Tiny radioactive dust particles float visibly through the air, illuminated by sunlight. Visibility is limited, and distant silhouettes can appear and disappear in the fog. At night, the environment becomes extremely dangerous. Strange creatures roam the wasteland, and one terrifying mutant actively hunts the player. The game should have a realistic, gritty, post-apocalyptic visual style with detailed environments, realistic lighting, volumetric fog, dynamic weather, and natural sound design. ## 2. THE PLAYER'S NUCLEAR BUNKER The player begins inside an underground military bunker that survived the nuclear explosion. The bunker is the player's only reliable safe haven. It contains a sleeping area, storage room, workshop, generator room, and an abandoned control center. Initially, most of the bunker is damaged and lacks essential supplies. The player must gradually repair and expand the bunker by collecting materials from the dangerous outside world. ### Base-building mechanics Allow the player to construct and upgrade: - Water collectors and water filtration systems. - Food storage and farming equipment. - A grill or cooking station to prepare hunted meat. - Beds and sleeping areas. - Storage containers and weapon racks. - Workbenches for crafting ammunition and repairing equipment. - Generators, batteries, and lighting. - Radiation decontamination stations. - Reinforced doors, barricades, and defensive traps. Every system should have a purpose. Water must be collected and purified. Food must be hunted, grown, or scavenged. Generators require fuel or another power source. The bunker should gradually transform from a damaged shelter into a functioning survival base. ## 3. THE DAY AND NIGHT CYCLE The game features a continuous day-and-night cycle. ### Daytime Daytime is the primary scavenging period, but it is never completely safe. - Yellow-green radioactive fog covers the environment. - Radioactive dust particles are visible in sunlight and flashlight beams. - The player explores abandoned houses, military facilities, forests, roads, and ruined settlements. - Deer and other mutated wildlife roam the wasteland. - Smaller hostile creatures can ambush the player. - Radiation exposure increases while outside. - The player must monitor supplies and return to the bunker before exposure becomes critical. ### Nighttime At night, the wasteland becomes significantly more dangerous. - Visibility drops dramatically. - The mutant becomes more active and aggressive. - Strange sounds echo through the forest. - Creatures move between abandoned buildings. - Flashlights help visibility but can reveal the player's location. - The player may hear footsteps, breathing, growling, or movement behind them. - The mutant may circle the bunker, investigate noises, and attempt to break through weak entrances. The player should feel that staying outside after dark is a potentially fatal mistake. ## 4. THE MAIN MONSTER: THE DEFORMED MUTANT Design the primary monster using the creature shown in the provided reference image as visual inspiration. It is a towering, horrifying, humanoid creature with a deer-like skull, enormous twisted antlers, an elongated body, unnaturally long limbs, and a deformed skeletal silhouette. Its skin is dark, damaged, and fused with strange organic growths. Its body appears to have been mutated by extreme radiation and exposure to an unknown biological agent. Its movements are unsettling. Sometimes it walks slowly through the fog. Sometimes it stands completely motionless between trees. Occasionally, it moves with sudden, unnatural speed. Its face should be difficult to see clearly, with deep shadows around its skull and faintly visible eyes. ### Monster intelligence The monster must not behave like a simple enemy that runs directly toward the player. It should: - Track the player's footsteps and other loud sounds. - Investigate gunshots, broken objects, and generators. - Search buildings and inspect possible hiding places. - Stalk the player from a distance before attacking. - Disappear into fog and darkness. - Sometimes appear far away without immediately attacking. - Become more aggressive when the player spends too long outside. - Remember recent encounters and revisit areas where it previously detected the player. - Attack when the player is distracted, injured, or low on ammunition. The monster should create psychological horror through uncertainty. The player should never know whether it is nearby, watching, or preparing to attack. Do not overuse jumpscares. Build tension through environmental storytelling, distant silhouettes, strange sounds, and unpredictable encounters. ## 5. RADIATION SURVIVAL SYSTEM Radiation is one of the most important gameplay mechanics. The player wears a radiation detector on their left wrist at all times. It must remain physically visible in first-person view. The detector features: - A live radiation reading. - A Geiger counter that clicks faster as radiation increases. - Visual warning lights. - An exposure indicator. - A warning when radiation becomes dangerous. - A record of accumulated radiation exposure. The detector should react dynamically to the surrounding environment. Low radiation produces occasional clicks. Moderate radiation causes frequent clicking. Severe radiation produces rapid clicking, alarms, and visual warnings. Radioactive hotspots can be found near craters, damaged reactors, contaminated military facilities, and abandoned vehicles. The player can carry a limited supply of protective equipment, anti-radiation medicine, and decontamination materials. Protective suits reduce radiation exposure but have limited durability and may restrict movement or consume additional resources. Radiation exposure should have consequences, including nausea, fatigue, blurred vision, reduced stamina, and eventually death if exposure becomes extreme. The player must make strategic decisions about how much radiation risk is worth taking for valuable supplies. ## 6. WEAPONS AND HUNTING The player begins with a basic firearm and limited ammunition. Firearms are essential for hunting wildlife and defending against hostile creatures, but ammunition is scarce. ### Hunting Deer roam forests, abandoned roads, and the edges of ruined settlements. The player must track deer, approach carefully, aim accurately, and avoid wasting ammunition. Hunted animals provide meat and other crafting resources. Meat can be cooked on the bunker grill. Raw meat should carry a risk of disease or contamination, so cooking and checking for contamination are important. The player can also encounter mutated animals that are dangerous to hunt. ### Combat Other hostile monsters inhabit the wasteland. Some are small and fast, while others are slow, heavily mutated, and extremely dangerous. The player can use firearms, ammunition types, crafted traps, and environmental hazards to survive. Gunshots should echo realistically across the landscape and potentially attract nearby enemies. Combat must feel dangerous. Enemies should react to damage, take cover when appropriate, and behave differently according to their biology., as an in-game screenshot in a hand-drawn ink and watercolour style. Palette: paper #f2e8cf, ink #283618, player tomato #bc4749, threat plum #6d597a, accent leaf #a7c957. Everything is original: never draw or resemble characters, places or logos from existing games, films or brands (no red-capped plumbers, no famous mascots), even when the idea names one. Keep the pictures honest: they promise what a small first version of this game, made in a game engine in a few days, can look like. Simple readable shapes, clear silhouettes, few flat materials, the in-game camera view. Never film stills, photoreal renders, AAA key art, detailed textures, cinematic lighting, or anything that looks like a big-studio game. No text, UI, HUD, logos or editor screens inside any image.