Gareth-Michael Skarka designed the cinematic role-playing game Hong Kong Action Theatre!
[2]: 336 Skarka co-authored the swashbuckling Skull & Bones (2003) campaign background supplement for the Mythic Vistas series from Green Ronin Publishing.
[2]: 372 Based in Lawrence, Kansas, Skarka started his company Adamant Entertainment in 2003, publishing material largely for the electronic market, and with a focus on role-playing games.
[2]: 372 When regular Cubicle 7 editor Dominic McDowall-Thomas was unavailable due to a consultancy contract, Skarka filled in to edit Starblazer Adventures (2008).
[2]: 428 Adamant Entertainment has designed licensed role-playing downloads for Doctor Who and Star Trek along with original worlds.