SURVIVAL MECHANICS
A placed or found fire that provides warmth, light, cooking, and often a safe checkpoint — a fixed point of relief in a hostile world.
Multiple garment slots — base layer, mid layer, outer shell — stack to provide cumulative warmth, protection, or other stat bonuses, rather than a single equipped outfit.
Combining ingredients into food that grants buffs, restores resources, or is required for survival — from simple recipes to freeform experimentation.
On death, the player drops accumulated resources at the death site and must return — often through the danger that killed them — to reclaim them, or lose them permanently.
Systems that adjust challenge over time or in response to the player — enemies leveling with the character, spawn intensity tracking performance, hazards ramping with days survived.
Characters can contract illnesses or infections that progress over time, imposing worsening penalties and requiring treatment, rest, or medicine.
A depleting meter that demands regular food intake, with penalties — stat drain, health loss, eventually death — as it empties.
Breathable air as a depleting resource — dive timers, vacuum exposure, cave air pockets, base atmosphere systems — where running out means rapid death rather than slow attrition.
When a character dies, they are gone for good — no revival, and no reload when paired with save restrictions.
Radioactive contamination as an environmental hazard — irradiated zones ticking damage, radiation accumulating in the body as a second health track, gear checks (suits, filters, meds) gating entry to hot areas.
In-game time cycles through seasons that change the environment, available activities, resources, and challenges.
Players construct defensible, functional living spaces from gathered materials — walls, roofs, doors, storage, defenses — as protection and a base of operations.
An interaction, usually with a bed or campsite, that passes time — often skipping to a specific hour, healing the player, or triggering scheduled events — rather than waiting in real time.
Environmental temperature acts on the character: cold zones drain warmth toward hypothermia, heat brings exhaustion, and survival requires clothing, shelter, fire, and route planning.
A depleting hydration meter that, like hunger, demands regular water intake, with worsening penalties as it empties.
Making water safe as a survival loop — dirty water demanding boiling or filtering, purification tablets and stills, contamination that sickens the desperate drinker, clean water as manufactured resource rather than found one.