THE 0PEN MECH GAME
C0RE
v0.18 β
The Open Mech Game uses six-sided dice. Players play mechs and their pilots, and the GM plays everything else.
Checks
Roll 1d6. 5+ is a success, 1-4 is a failure.
Mechs: add the listed attribute (if any) to the result of the roll.
Pilots: if skilled or properly equipped, succeed automatically.
Contested Checks
The aggressor rolls a check. Compare the two listed attributes (if any), taking +1 to the check if yours is higher or -1 if it’s lower.
Ranks
You start at rank 0, and your rank increases as you complete missions:
| RANK | RANK PTS. | MECH PTS. |
|---|---|---|
| 0 | 6 | 2 |
| 1 | 8 | 3 |
| 2 | 10 | 4 |
| 3 | 12 | 5 |
Rank Points
You put rank points into packages. You can reallocate your rank points whenever your rank increases.
Mech Points
Mech points describe how a mech operates. You put them into its attributes: Hull, Processing, or Engineering, 0 to 3 each.
Here are some examples of checks and contested checks that a mech might make:
| CHECK | EXAMPLE USAGE |
|---|---|
| Hull | Feats of endurance, withstanding environmental factors. |
| Processing | Accessing data, calculations, keeping balance, intricate/quick manual maneuvers. |
| Engineering | Feats of strength, lifting, pushing, demolishing. |
| Contested Hull | Outmuscling another mech, physical domination. |
| Contested Processing | Defending against/performing cyberattacks, being the first to act, outrunning another mech. |
| Hull vs. Processing | Tackling, grappling, dragging other mechs around. |
Mechs
Mechs are terrible instruments of industry and violence.To create a mech...
Allocate your starting mech points.
Calculate and write down your mech's stats:
| MECH STATS | |
|---|---|
| Size | Equal to Hull. |
| Max HP | Equal to Hull × 5, minimum 3. When a mech’s HP hits 0, it is destroyed. |
| Sensor Range | Equal to Processing × 3. Determines the maximum distance at which you can target tech actions. |
| Speed | Equal to 2 + Processing + Engineering. |
| Heat Capacity | At the end of its turn, if a mech’s heat exceeds Engineering + 3, its reactor melts down. |
| Weapon Capacity* | Equal to Engineering + 2, but not more than Hull + 2. Limits which weapons a mech can slot. |
| System Capacity* | Equal to Processing + 2. Limits which systems a mech can slot. |
*A weapon or system’s size (0 to 3) describes how much capacity it uses.
Spend your rank points on packages.
From your selected packages, choose the weapons, systems, and directives installed on your mech.
Name your mech and write down its look.
Pilots
Pilots are people who operate mechs. Military vanguard, private contractors, mercenaries, industrial laborers.Though pilots can appear larger than life, the best of them is as effortlessly atomized by mech weapons and small arms fire as anyone else. Pilots survive by their wits alone.To create a pilot...
Choose 3 skills or make up your own.
Choose up to 5 pieces of gear.
Give your pilot a look and callsign.
| PILOT SKILLS | |
|---|---|
| Sneak | Investigate |
| Hand-to-Hand | Inspire |
| Urban Warfare | Explosives |
| Charm | Show Off |
| Find Something | Spot |
| Get Somewhere Quick | Stay Cool |
| Know Somebody | Survive |
| Hack | Threaten |
| Reputation | Pick Up Rumors |
| Jerry Rig | Take a Hit |