Simple, Flexible d100 Gaming

When was the last time your character used their “Accounting” skill?

Or, for that matter, “Mineral Lore“?

What about “Dance“?

What? Really? Your character’s a waltzing geologist with a head for figures?

Well, for the rest of us, here’s Hack100…

Hack100 is a tabletop role-playing game system in which characters can be created in minutes and the vast majority of in-game actions are covered by around a dozen, rather than dozens of, skills.

It is also very flexible, eschewing standard lists of professions, skills, powers and monsters in favour of a freeform, collaborative approach.

Hack100 is a generic system that is suitable for most genres of role-playing games.


Classic percentile-based d100 system

Hack100 uses a classic percentile-based mechanic in which a character’s various abilities are expressed as a percentage. Tasks are resolved by attempting to roll under the relevant ability on 1d100.

The intention is to provide a streamlined system that is quick, easy and intuitive to use. This allows a game to flow naturally with minimal interruptions for the referencing of rules or tables.

Quick yet flexible character generation

All characters are defined by just ten core Abilities. These cover the actions that occur most commonly in typical games.

The core Abilities are supplemented with a small number of additional Specialisms that reflect an individual character’s particular background, talents or training.

There is no fixed list of Specialisms. Instead, they are agreed between the players and the Referee. This freedom allows players to create exactly the character they imagine without the constraints of predefined classes, careers, skills, talents and powers.

Freeform collaborative approach

Rather than providing standard lists of character classes, skills, equipment, spells, powers or monsters, Hack100 instead provides a framework that allows Referees and players to tailor the game to their exact preferences

  • A single sentence summarises a character’s background and motivation for adventuring.
  • The costs and effects of spells and other such powers are agreed on a case-by-case basis at the point of use.
  • A simple ten-step methodology is presented for creating any NPC or monster such that they are a bespoke addition to a game.

Latest blog posts

  • A Character Sheet for “Catching Rats & Robbing Graves”
    A game’s character sheet can often tell you a lot about its level of detail and complexity. Therefore, ahead of the release of the first full draft of Catching Rats & Robbing Graves, the Hack100 supplement for running WFRP-style games, here is its character sheet. I’m hoping to release that full draft of CRARG within […]
  • Catching Rats & Robbing Graves – Release 0.01
    Here’s an early work-in-progress release of Catching Rats & Robbing Graves (CRARG), a supplement for Hack100 that provides guidelines for running Warhammer Fantasy Roleplay (WFRP)-style games. Release 0.01 of CRARG includes the Introduction and the early sections of Character Creation. To accompany the release, here are some supplementary design notes.
  • Catching Rats & Robbing Graves: Other Warhammer-Inspired RPGs
    Before diving into a Warhammer Fantasy Roleplay-inspired conversion of Hack100, I thought I’d take a look at similar paths travelled by others. There are three existing RPGs that I’m aware of that pass the “Does it have ‘Rat Catcher’ and ‘Grave Robber’ characters?” test.
  • Warhacker
    Whilst I love the setting and tone of the 4th Edition of Warhammer Fantasy Roleplay, I’m less convinced by its mechanics, particularly in combat. Fundamentally, it’s a straightforward d100 system. However, it is burdened by a plethora of modifiers to each attack roll – advantage, target size, range, conditions, ailments, psychological effects, etc. And that’s before […]
  • What Next for Hack100?
    With the release of the Hack100 core rules, it’s time to consider what to do next. I’m keen to build upon the momentum generated by the launch that saw around 500 downloads in the first three weeks. There are three areas in which I see scope for additional content.

More blog posts …