ENVIROMENTAL RULES

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ENVIRONMENTAL RULES

At the start of each travel period or major change in location, roll a d10. On a result of 1, make an environmental roll. This means that once in every ten travel checks, the environment itself creates a challenge instead of or in addition to a random encounter. Environmental rolls simulate nature working against the party, from storms and floods to disease and heat.

Characters with the correct clothing or protective equipment may ignore most environmental effects, such as cold weather furs blocking frostbite or desert garb preventing heat exhaustion. Some environmental hazards may still apply (such as avalanches or floods), but survival rolls may be made easier or damage reduced when proper protection is in use. Race traits may also negate or reduce effects, such as a Hellion ignoring heat, or a Beastfolk with aquatic lineage avoiding drowning risks.

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Terrain Movement

Terrain	Movement Modifier	Survival Modifier	Notes
Plains / Roads	x1 (normal)	+2	Easy travel
Forest	x0.75	0	Dense cover, limited sight
Jungle	x0.6	-2	Humid, insect hazard
Desert	x0.5	-4	Heat, water drain
Swamp	x0.5	-3	Disease, sinking
Hills	x0.75	-1	Steep climbs
Mountains	x0.5	-5	Cold, falling hazard
Arctic / Tundra	x0.6	-4	Frostbite, low forage
Underground / Cave	x0.6	-3	Toxic air, low visibility
River (Downstream)	x1.5	-1	Requires boat
River (Upstream)	x0.5	-1	Requires boat
Ocean / Sea	x1	-3 (storms)	Wind is key factor

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Survival Hazard (Roll d20 if d10 triggers)

Roll	Hazard
1	Flood, avalanche, or landslide
2	Sudden temperature shift (freezing or scorching)
3	Poisonous plants or spore release
4	Disease-bearing insects or vermin
5	Quicksand, bog, or sinkhole
6	Rockfall or collapsing terrain
7	Hostile fauna (wolves, serpents, insects)
8	Toxic gas pocket
9	Strong current or whirlpool
10	Fog or blizzard reduces visibility
11	Lightning storm, hail, or sandstorm
12	Extreme cold, frostbite risk
13	Extreme heat, dehydration risk
14	Starvation, no forage available
15	Lost or spoiled supplies
16	Magnetic disturbance (navigation fails)
17	Unstable ground collapse
18	Swarm of insects, bats, or vermin
19	Hazard triggers a random encounter
20	Favorable conditions, survival roll bonus

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Environmental Damage

Effect	Trigger Example	Damage	Notes
Cold	Snowstorm, arctic travel	1d6 per hour	Clothing negates
Heat	Desert, volcanic travel	1d6 per hour	Desert gear negates
Suffocation	Underwater, gas pockets	1d10 per minute after air is gone	Aquatic traits may negate
Falling	Cliff or mountain fall	1d10 per 10 feet	Armor does not protect
Drowning	Failed swim in deep water	1d8 per round	Aquatic traits negate
Starvation	No food 3+ days	1d6 per day, cumulative	Food negates
Thirst	No water 2+ days	1d8 per day, cumulative	Water negates

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Foraging and Supplies

Action	Roll	Result
Hunt animals	1d20 + Animal stat	1d4 party members fed
Gather plants	1d20 + Wisdom stat	1d4 party members fed
Forage failure	N/A	1d8 damage + sickness for 24 hrs

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Environmental Fatigue

Fatigue Points	Effect
1–2	No penalty
3	–1 to all rolls
5	Movement halved
Reset	Safe long rest in shelter or proper protection

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Wind and Weather (Land & Sea)

Wind Type	Effect
Tailwind	+25% speed, easier navigation
Headwind	–25% speed, harder navigation
Crosswind	Normal speed, ranged –2
Storm wind	50% speed, capsizing risk

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