06-05-2022, 02:58 PM | #1 |
Join Date: Jan 2018
Location: Portland, Maine
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Burning Down the Town
Someone on the TFT Facebook page asked if anyone had a simple TFT rules/guidelines on how fire may spread. He was fine if the timescale wasn't tactical. He wasn't looking to simulate the ‘physics of fire’ or anything.
I took up the challenge. Below is a suggestion for fire spreading in a village/town. This is an abstract form of burning a town down.
There is a gritty abstract mechanics that is also a 1 minute turn and uses a Village Map Hex.
Building External Fire can cause sparks that go beyond the building. When buildings are within 2 hexes (Melee Map hexes) of each other, the fire can jump buildings, most likely in the direction of any wind.
This fire does not take accelerants or magic fire into account. This would increase flame consumption. Here are several working tables that might help. Exterior Building Material.............Armor vs Fire Light, flimsy building..........................0 Standard wooden structure.................1 Wattle & Daub...................................2 ?................................................. .....3 Earthen or Adobe...............................4 Brick................................................ 6 Stone............................................. ..8 Protection from Flying Sparks. (Setting the roof on fire) Once the roof is pierced (reaches 0 armor), use normal gritty rules. Type of Roof...............................Protection from flying sparks Thatch/Cloth.....................................0 Wood Shingles...................................2 Clay Tile or Slate................................4 (this is an ablative every other turn) Accelerants* (Accelerant is consumed in 1 turn)......Add this to Fire Attack Gunpowder (not explosive)..................+3 Paper/vellum (large amounts)..............+2 Oil............................................... .....+2 Spirit alcohol......................................+2 Pitch, Resins......................................+1 Silk/Cotton (large amounts).................+1 *The accelerant can be in any Melee Hex of the V-Hex. If it is in multiple melee hexes, it will burn for 2 turns instead of 1. Moisture Wet............................................... ....Reduce fire attack by 3 Damp.............................................. ..Reduce fire attack by 1 Normal............................................ ..0 Arid (exceedingly dry and hot)..............Increase fire attack by 1 Already Inferno nearby (Temp reaches 1500df)...Increase fire attack by 2 Structure Sizes.....*Add HP for each story Structures – Footprint....................Melee Hex...../..Village Hex..............# of Stories Hut/shack........................................Megah ex or smaller/ .x.........................1 story Small Structure................................4 – 8 megahex/ 1.................................1 or 2 story Medium Structure..............................8 – 11 megahex/1.5.............................2 story Large Structure.................................12 – 20 megahex/2 - 3.........................2 or 3 story Manor............................................. .25 – 35 megahex/3 - 5..........................3 story ---------------------------------- Here is an example of a Simple Burning and a Gritty Burning. Simple Building ST = 10 Gritty Building: ST=10, Collapse check at ST=3. Armor = 3. Fire Attack = 1d6 75% (round down) of 10 is 7. This is when an interior fire goes exterior. 25% (round up) of 10 is 3. This is when there is a chance of building collapse. Fires can start inside or outside the building. In this example, Damage in these examples is indicated in the beginning of the next turn. SIMPLE BURNING TOWN Turn 1 ST=10 Fire roll 1d6=3 Building starts to burn Turn 2 ST=7 Fire roll 1d6=4 Fire rages Turn 3 ST=3 Fire roll 1d6=1 Building continues to burn Turn 4 ST= 2 Fire roll 1d6=3 Building continues to burn Turn 5 ST=0 Entire building consumed GRITTY BURNING TOWN Turn 1 ST=10/3, Armor 3 Fire roll 1d6=3 3-3=0...................Building does not start burning Turn 2 ST=10/3, Armor 3 Fire roll 1d6=4 4-3=1...................Building starts to burn Turn 3 ST=9/3, Armor 2 Fire roll 1d6=1 1-2=0...................Fire stays in same spot Turn 4 ST=9/3, Armor 2 Fire roll 1d6=3 3-2=1...................Building continues to burn Turn 5 ST=8/3, Armor 1 Fire roll 1d6=4 1-4=3...................Fire increases greatly Turn 6 ST=5/3, Armor 0 Fire roll 1d6=3 3...........................No more resistance to fire, temp soars Turn 7 ST=2/3, Armor 0. Collapse roll 1d6=2...Building does not collapse Fire roll 1d6=1 1............................Building continues to burn, more than 75% consumed. Turn 8 ST=1, Armor 0 Fire 1d6=5...............(flare up) 0.............................Entire building consumed Roll Fire Attack on building across the street Any comments?
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06-06-2022, 10:05 AM | #2 |
Join Date: May 2015
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Re: Burning Down the Town
Nice. A couple of critiques come to mind:
* 5-10 minutes for an entire building to burn and collapse seems extremely fast to me. * Seems to me like fires have momentum, so often they take quite a while to get established (or not), but the more of a building catches fire, the more fire there is doing damage unless/until the shape of the building and the position of the fire limits the spread. Details perhaps more than you want to get into, but it seems like the initial damage rate would be much lower than when a large part of a building is on fire, and yet structural collapse would nonetheless tend to be rather later than that. So not a constant rate of damage. And a couple of questions: * How would you handle attempts to put out a fire? * What counts as "a fire attack", and how would TFT damage and fire attacks correspond to the damage used here? |
06-06-2022, 09:42 PM | #3 | |||||
Join Date: Jan 2018
Location: Portland, Maine
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Re: Burning Down the Town
Quote:
Quote:
The building armor idea comes from ITL (for burning down doors) and GURPS. Quote:
------------------------------ The original request was for a non-tactical (not 5 second round) approach to spreading fire. I just decided to use the Village Hex map scale and picked a time interval that might work. Its not really intended for the PCs to be present while you make the fire attack rolls. So I guess the original FIRST fire attack would be the PCs or NPCs setting fire to a building (or not putting out the fire in the hearth). That would be ITL p19 Fire spell, ITL p 124 Fire as a Weapon and Hexagram #4 p16 Kicking Down the Door. NOTE: the burning times for those door burnings is with an oil soaked door. I triple the time for non-accelerant fire. Thus a regular door would take 30 minutes to burn to ash.[/QUOTE] Quote:
Quote:
Perhaps what is also wanted is a Tactical Map (5 second round) Fire Spread guideline that can link up with these guidelines?
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06-07-2022, 05:50 AM | #4 |
Join Date: Oct 2015
Location: New England
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Re: Burning Down the Town
Surely we have some ‘Trippers who are full-time or volunteer firefighters who might have some expertise to lend here.
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06-07-2022, 09:50 AM | #5 |
Join Date: Dec 2021
Location: Indiana
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Re: Burning Down the Town
Interesting start to set an array of ground rules. I will have to read it more to really comment on it.
I concur with Shostak. It would be nice for an experienced firefighter to place their filter over this info. Last edited by Bill_in_IN; 06-07-2022 at 01:15 PM. |
06-07-2022, 10:08 AM | #6 |
Join Date: Sep 2018
Location: North Texas
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Re: Burning Down the Town
BTW, shouldn't we move this to the House Rules sub-forum?
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06-07-2022, 04:40 PM | #7 |
Join Date: Jan 2018
Location: Portland, Maine
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Re: Burning Down the Town
YES, you are absolutely right. Me Bad.
I should have realized that when I started the post. Please go to the House Rules sub-forum http://forums.sjgames.com/showthread...69#post2434569
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- Hail Melee Fantasy Chess: A chess game with combat. Don't just take the square, Fight for it! https://www.shadowhex.com Last edited by JohnPaulB; 06-07-2022 at 04:46 PM. Reason: Transfer to House Rules |
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