Overview

Bommerz over da Sulphur River is a light wargame set in the Warhammer 40,000 universe. One player commands Imperial defenders protecting bridges over the Sulphur River, while the other player(s) control Ork Fighta-Bommerz trying to destroy them. Fighta-Bommerz speed through a valley represented by 3 board sections, dodging flak, lasers, rock spires, and Thunderbolt Interceptors while attempting bombing runs on the bridges. The game uses simple dice mechanics for movement, combat, and bombing.

Components

• 3 Board sections
• 12 Defence counters (Interceptor, Laser, Flak, Rock Spires)
• 6 Damage markers
• 8 Dice
• Rules sheet
• Requires 4 Ork Fighta-Bommer and 2 Imperial Thunderbolt Interceptor miniatures (sold separately)

Setup

1-player (solo): Shuffle defence counters facedown. Place one on each bridge and one on each Imperial eagle space. Set up 4 Bommerz in starting spaces.

2-player: One player commands Imperial defenders, the other plays the Orks. Imperial player shuffles defence counters facedown, picks 6 at random, examines them, and places 2 on each board (no more than 1 per space). Ork player gets 4 Fighta-Bommerz in starting spaces.

3-player: As 2-player but with 2 Ork players with 2 Bommerz each.

4-player: 3 Ork players with 1 Fighta-Bommer each (first one destroyed gets the spare) OR solo game with 1 Bommer each.

5-player: 4 Ork players with 1 Fighta-Bommer each.

Turn Structure

Each turn has two phases:

Ork Player’s Move

1. Each Fighta-Bommer’s player rolls 2D6 and picks one die for their Speed (place a green die as reminder).
2. Move Fighta-Bommerz up to their Speed in spaces along map links.
3. Resolve encounters with defence counters (flip facedown counters face-up when entered).
4. Make bombing runs on bridges or flak positions when passing through.
5. Fastest Fighta-Bommer moves first if order matters.

Imperial Player’s Move

1. May flip over 1 defence counter (revealing it).
2. Move any face-up Interceptors and Flak counters.
3. Interceptors roll 2D6 and pick one for movement (same as Bommerz).
4. Flak counters move up to 1 space (cannot enter spaces with Fighta-Bommerz).

Solo Imperial movement: Flak is static. Interceptors always move as fast as possible toward the nearest Fighta-Bommer.

Actions

Movement Rules

• Fighta-Bommerz move space to space along links on the map.
• Cannot enter a space just left (point tail toward previous space as reminder).
• Only 1 craft per space at end of movement (may pass through occupied ally spaces).
• Being driven off ends a craft’s move even if Speed remains.

Defence Counter Types

Interceptor: When in the same space as a Fighta-Bommer, a Dogfight occurs. Both roll 1D6 (re-roll ties). Higher roll wins and drives the loser 1 space in any direction. If the winner beats the loser by 3+, the loser also takes 1 damage. Can move 1-6 spaces per turn.

Laser: Fires only if already face-up when a Fighta-Bommer enters its space. Bommer must Dodge (roll D6 >= its Speed). Failure = instant destruction. Success = Bommer continues moving. Laser flips facedown after firing. Cannot move.

Flak: When a Bommer enters a flak space, roll the number of D6 shown on the counter. Each die >= the Bommer’s Speed = a hit.

• 1 hit: Driven Off 1 space (Imperial player’s choice); move ends.
• 2 hits: Driven Off + 1 damage.
• 3 hits: Shot down. Moveable flak can move 1 space per turn. Bridge flak (1D6) is permanent.

Rock Spires: Any craft entering must Dodge (D6 >= Speed). Failure = 1 damage. Success = no effect. Craft continues moving either way. Cannot move.

Damage

Each craft can take 2 damage points:

• 1st damage: -1 to ALL dice rolls (movement, dodges, dogfights, bombing).
• 2nd damage: Craft is destroyed.

Bombing Runs

When a Fighta-Bommer survives all defences in a bridge space, it makes a bombing run. Roll 2D6; each die >= the Bommer’s Speed = a hit.

• Flak counters: destroyed by 1 hit.
• Bridges: destroyed by a total of 4 hits (track with a die). A Bommer may make multiple bombing runs in one turn.

Dodging

Roll D6 and equal or beat the craft’s Speed to dodge successfully. Used for lasers and rock spires.

Scoring / Victory Conditions

After all Fighta-Bommerz are destroyed or leave the map, check the result:

1 wave of Bommerz: | Bridges Damaged | 1 Bridge Destroyed | 2 Bridges Destroyed | |—————–|——————-|——————-| | Ork Minor Victory | Ork Major Victory | Ork Major Victory |

2 waves of Bommerz: | Bridges Damaged | 1 Bridge Destroyed | 2 Bridges Destroyed | |—————–|——————-|——————-| | Imperial Minor Victory | Ork Minor Victory | Ork Minor Victory |

If no bridges are damaged: Imperial Major Victory (1 wave) or Imperial Minor Victory (2 waves).

If multiple Ork players, the one who scored the most bridge hits is the individual winner.

The Second Wave

After all Bommerz are destroyed or leave the map, Ork player(s) may bring on a second wave of 4 new Fighta-Bommerz in the starting spaces. In multi-player games, the Imperial player shuffles remaining defence counters (including destroyed ones) facedown and draws 1 new counter to place on any board. In solo games, place replacements on empty Imperial starting spaces.

Special Rules & Edge Cases

• Speed selection: Picking a lower Speed die makes bombing and dodging easier (roll >= Speed) but limits movement range. Higher Speed = more movement but harder to hit targets.
• Dogfight continuation: The craft that moved into the space continues moving if it wins; otherwise its move ends.
• Bridge flak: Each bridge has a permanent 1D6 flak battery. If a flak defence counter is also on a bridge, roll all flak dice together.
• Solo Interceptors: Always move at max speed toward nearest Fighta-Bommer.
• Craft stacking: Only 1 craft can end movement in a space, but craft can pass through allied-occupied spaces.

Player Reference

Turn Sequence:

1. Ork: Roll 2D6 per Bommer, pick 1 for Speed. Move. Resolve encounters. Bomb.
2. Imperial: Flip 1 counter. Move Interceptors and Flak.

Dodge: Roll D6 >= Speed to succeed

Damage Effects:

Damage	Effect
1 point	-1 to all dice rolls
2 points	Destroyed

Bombing: Roll 2D6; each >= Speed = 1 hit. Bridges need 4 total hits. Flak needs 1 hit.

Dogfight: Both roll D6 (re-roll ties). Winner drives loser 1 space. Win by 3+ = also 1 damage.