Flooded Grassland

Flooded Grassland
Alicia Yo, CC BY-SA 3.0, Wikimedia Commons

Wide grassy plains that lie under shallow water for part of the year. Birds gather in their thousands, fish spread across the plain, and travel turns from walking to wading or poling a boat.

Over the year it averages 24 °C.

Hear it

For the table

Ground
hard going, about 10 km a day on foot
Seasons
21 °C in the heart of winter, 28 °C in the heart of summer
Water
plentiful
Foraging
rich

Hazards

  • Sucking mud. Firm-looking ground opens onto deep mud or peat. Alone and laden, a traveller can be held until the water rises or the cold comes.
  • Fevers. Warm stagnant water breeds the fevers that emptied whole expeditions before anyone knew the mosquito carried them.
  • Biting insects. In the warm season, clouds of mosquitoes and flies bite day and night. Sleep and tempers wear thin.
  • Downpours. Rain for days soaks gear, swells streams into torrents and turns paths to mud.

D&D 5e

Plays as
swamp, slow pace at most
Checks
forage: Survival DC 10 · find the way: DC 15 · search: DC 20
Creatures are spotted at
2d8 × 10 ft
  • Downpours. Heavy rain makes the area Lightly Obscured, gives Disadvantage on Wisdom (Perception) checks and puts out open flames.

This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

Pathfinder Second Edition

Plays as (Pathfinder Second Edition)
swamp, greater difficult terrain, about 11 km a day at Speed 25
Checks
Subsist: Survival DC 15 · Sense Direction: Survival DC 15
Random encounters
flat check DC 14 each day
  • Sucking mud. Quicksand (GM Core p. 107): a hidden patch about 5 m wide (Stealth +12; Survival DC 18 to spot by disturbing it). Stepping in sinks a traveller to the waist, then one step each round (neck, then under); Athletics DC 20 climbs back a step, and allies can pull with Athletics DC 20.
  • Downpours. Heavy rain gives a –1 to –4 penalty to Perception that relies on sight, conceals distant creatures, douses flames and brings travel fatigue down to 4 hours (GM Core p. 95).

This product is licensed under the ORC License located at the Library of Congress at TX 9-307-067 and available online at various locations including paizo.com/orclicense, azoralaw.com/orclicense, and others. All warranties are disclaimed as set forth therein. Attribution: this rules layer is based on the following Licensed Material: Pathfinder Player Core © 2023 Paizo Inc., Designed by Logan Bonner, Jason Bulmahn, Stephen Radney-MacFarland, and Mark Seifter. Authors: Alexander Augunas, Kate Baker, Logan Bonner, Jason Bulmahn, Carlos Cabrera, Calder CaDavid, James Case, Eleanor Ferron, Steven Hammond, Joan Hong, Vanessa Hoskins, James Jacobs, Jenny Jarzabski, Erik Keith, Dustin Knight, Lyz Liddell, Luis Loza, Patchen Mortimer, Dennis Muldoon, Stephen Radney-MacFarland, Mikhail Rekun, David N. Ross, Michael Sayre, Mark Seifter, Kendra Leigh Speedling, Mark Thompson, Clark Valentine, Andrew White, Landon Winkler, and Linda Zayas-Palmer; Pathfinder GM Core © 2023 Paizo Inc., Designed by Logan Bonner and Mark Seifter. Authors: Amirali Attar Olyaee, Logan Bonner, Creighton Broadhurst, Jason Bulmahn, James Case, Jesse Decker, Eleanor Ferron, Fabby Garza Marroquín, Jaym Gates, Matthew Goetz, James Jacobs, Brian R. James, Jenny Jarzabski, Dustin Knight, Jason LeMaitre, Lyz Liddell, Luis Loza, Ron Lundeen, Stephen Radney-MacFarland, David N. Ross, Michael Sayre, Mark Seifter, Owen K.C. Stephens, Amber Stewart, Clark Valentine, Landon Winkler, and Linda Zayas-Palmer; Pathfinder Monster Core © 2024 Paizo Inc., Authors: Alexander Augunas, Dennis Baker, Kate Baker, Joshua Birdsong, Joseph Blomquist, Logan Bonner, Jason Bulmahn, James Case, John Compton, Paris Crenshaw, Adam Daigle, Darrin Drader, Brian Duckwitz, Robert N. Emerson, Scott Fernandez, Eleanor Ferron, Leo Glass, Matthew Goodall, BJ Hensley, Thurston Hillman, Vanessa Hoskins, James Jacobs, Jenny Jarzabski, Miko Kallio, Jason Keeley, Jeff Lee, Lyz Liddell, Luis Loza, Ron Lundeen, Robert G. McCreary, Philippe-Antoine Menard, Jacob W. Michaels, Dave Nelson, Jason Nelson, Tim Nightengale, Stephen Radney-MacFarland, Mikhail Rekun, Patrick Renie, Alex Riggs, David N. Ross, Michael Sayre, Mark Seifter, Chris S. Sims, Amber Stewart, Jeffrey Swank, William Thompson, Jason Tondro, Clark Valentine, Landon Winkler, Tonya Woldridge, and Linda Zayas-Palmer. If you use our Licensed Material in your own published work, please credit us as follows: Biomes, Pathfinder Second Edition rules layer © 2026 Michael Ghelfi. Reserved Material: the names of Biomes and its catalogues, its descriptions, sounds, art and code. Pathfinder is a registered trademark of Paizo Inc.; this site is not published, endorsed, or specifically approved by Paizo Inc.

Adventure hooks

  1. As the flood withdraws, a fisherman finds his net full of fish in a field a day’s walk from the river. Tangled in it is a bronze helmet of a kind nobody has worn for a thousand years.
  2. A boatman poles travellers across the flooded plain for a coin each, and three of his passengers never reached home. He swears he set them down on dry land, and he did, on an island that was gone the next morning.
  3. Cranes come every year to dance in the same reed bed, and the village holds its weddings when they arrive. This year they are late, and a bride’s family has decided it is the groom’s fault.
  4. A baron is diking the plain to grow wheat, and the fishing villages are left with mud. Someone breaks the dikes at night; the baron wants the culprits hanged, and the villages want to hire the party before he does.

Animals

Creatures

This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

To gather

Green Anaconda Fat, Beetle Wing, First Morning Dew

Beneath

Near the surface the rock keeps the year's mean warmth, without seasons; it warms as one goes down.

At the surface
24 °C
100 m
27 °C
500 m
38 °C
1 km
52 °C
3 km
107 °C

A town here

How large a town this land can feed, what it makes and what it must buy. Build it in Hearth

Fantasy variants

Primeval Flooded Grassland, Toxic Flooded Grassland

Nearby biomes

Tropical Rainforest, Tropical Dry Forest, Temperate Forest, Temperate Conifer Forest, Taiga, Savanna, Grassland, Alpine Meadow, Tundra, Mediterranean Scrub, Hot Desert, Cold Desert, Ice Sheet, Barrens

Open it in Biomes — MGS Toolbox