Shattered Swords of Hyboria
I pulled this house rule directly from Thulsa’s xoth.net website. I am a big fan his work and think that this will help any would-be sorcerors of the game.
The new cost of certain alchemical items is only one-fourth of the cost and time specified in the rulebook. This cost and time reduction applies to the following items only: Acheronian Demon-Fire, Flame-Powder, Kothic Demon-Fire, Lotus Smoke, Stygian Tomb-Dust; Blue Devil’s Flame, and Dust of Forgetfulness.
Why? While not a problem for NPCs as they can have whatever they want, regardless of price, the prices on most of these items need to be marked down if they are to be a real option for a PC Sorceror. If not, I don’t think they will see much use unless found on enemies since the disadvantages are too restrictive. A scholar who has Craft (alchemy) 15 and who takes 10 can make 1 Blue Devil’s-Flame in 3 weeks at the cost of 100 sp. But it requires a base where he can work undisturbed and an expensive lab (500+ sp). And this is maybe the most cost-effective alchemical item. The same scholar would have to spend 5 weeks and 166 sp for a single Kothic Demon-Fire (assuming take 10), which is roughly as strong as a single swing from the bardiche-wielding barbarian. It’s no fun wasting 5 weeks and 166 sp only to roll a 3 when you throw the thing.