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Pyroclastic Flow Counters logo
Pyroclastic Flow Counters logo

Pyroclastic Flow Counters

A Reimagining of the Vintage Microgame Hot Spot




Shiros was a volcanic planetary hell. It was also a key production center that the Theocrat rebels had to capture.

Pyroclastic Flow is a modern reimagining of the vintage Metagaming Microgame titled Hot Spot. It is a quick playing, beer and pretzels, tactical wargame about the Theocrat raid on Shiros. The Soros Corporation maintains fragile, floating platforms called Crustals that can move through molten lava. The Crustals are defended by Infantry and Hovercraft.

The Theocrat attackers are strong, but they must capture Crustals quickly, before their Attack Platforms break up and their units melt into the planet’s surface. It's the wargame version of "The Floor is Lava."

Pyroclastic Flow uses an entirely revamped conflict resolution system inspired by the Panic Engine used by the ttrpg Mothership. Instead of using a standard combat results table, this game uses a pair of opposed rolls of d100 dice and a combat matrix to determine the combat results. Every single attack can result in a negative outcome and is super easy to resolve. The most difficult math in the game is adding up multiples of 10 to a maximum of 100. This game eliminates calculating odds ratios in favor of rolling directly against a stack of units stats. You can read more about this design and how it compares to other vintage Microgames here.

This game is designed as a friendly entry into hex and counters wargames, which is a pretty daunting genre to enter into. This version of the game is a box of 72 counters, but you will need to print the instructions, the map, and the player trackers yourself. Printing and mounting counters is an arduous task, so this version gives you a nice middle ground between pure print and play and the more expensive full box.

A print and play/VTT only version is also available on DriveThruRPG and Wargame Vault and is available for paid subscribers of The Adventure Gaming Periodical as part of its Micro Sub program.


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Average Rating 0 reviews
Publish Date October 17, 2023
Edition First
Department Games
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More Info Pyroclastic Flow Counters web site

Why buy this?

  • Hex and Counters
  • Quick Play
  • Human Made


  • This game contains a premium upgrade called UV Coating that makes the printed components more durable.
  • This game contains laser cut components. Laser cut items will have a slight amount of soot around the edges, which can easily be wiped off; and will have a campfire smell for about a week after you open them.


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Own It Played It Fun Priced Well High Replay Value Well Written Rules Nice Artwork


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