Add a new rule, “Tool Use”:-

Each Caveman may carry zero, one or two Tools from the following list, tracked in the GNDT:-

• Rock. (Also known as a “basic Rock”.)
• Sharp rock.
• Stick. (Also known as a “basic Stick”.)
• Pointy stick.
• Burny stick.
• Burny pointy stick.
• Fire. (If a Caveman is carrying Fire, they are considered to be tending a campfire.)

As a daily action, a Caveman may either:-

• Add either a basic Rock or a basic Stick to their Tools.
• Remove a Tool from their Tools, to give it to a Caveman who has fewer than two Tools.

If a Caveman has two Tools, he or she may not gain any further Tools.

In the Research Projects wiki page, if the proposal “The Knowledge” passed, add to the Effect of “Making Pointy Sticks”:-

A Caveman who has Knowledge of Making Pointy Sticks may, as a daily action, turn any basic Sticks they are carrying into Pointy Sticks.

In the Research Projects wiki page, if the proposal “The Knowledge” passed, add to the Effect of “Sky Fire”:-

A Caveman who has Knowledge of both Bashing Rocks and Sky Fire, and who is carrying two Rocks (of any type) may, as a daily action, remove one Rock from their Tools to add Fire to their Tools.

In the Research Projects wiki page, if the proposal “The Knowledge” passed, add to the Effect of “Tools”:-

A Caveman who has Knowledge of Tools may, as a daily action, turn any basic Rocks they are carrying into Sharp Rocks.