A low-level adventure set in the plagued wilderness and abandoned mines of a crumbling dwarven mining town. Demon-hunters march in force, strange beasts stalk the woods, and cultists dig for something still buried in the silver mine...
The ailing town of Gloaming Hills has seen better days. Ever since the silver mine was shut down the very town itself feels like its decaying. To make matters worse, a demonic cult has taken the abandoned silver mine and made it their hideout, but fear not, for a company of disreputable demon-hunters has arrived to attack the hideout and destroy the cult for good, glory, and profit.
Yet something more is amiss…
What is the cult doing here in the first place, why was the mine abandoned to begin with, why is the entire area plagued with a terrible mildewed pox, and what lies patiently in the quiet crawling dark of the earth..?
Steady your nerves, careful what you breath in, and check yourself for mold as you delve into Mildew and Silver.
Mildew and Silver is an entry-level adventure about facing down a demonic cult with the backing of demon-hunters. The adventure has players investigating a town for clues, journeying through a plagued wilderness, delving a cult’s fortified hideout, and (likely) attempting to flee the ancient horror that dwells within… Compatible with Old-School Essentials and most old-school fantasy role-playing games.
Mildew and Silver is a 24 page letter-sized adventure module for Old-School Essential or any other OSR-adjacent systems. Meant to be played over 2-5 sessions, the adventure can be used as an introductory adventure for new characters or as a point of interest for low-level parties. All copies come with a PDF version for tablets and computers, as well as a press-ready file for at-home printing.
As part of Feral Indie Studio policy, we will be doing "Equity Shipping," meaning all packages will ship at the same price (or as close as we can, tariffs be damned) no matter where you are in the world. For domestic US backers, this means the cost of shipping may be slightly higher than the usual postage/media mail rates. This is to compensate for international backers and make sure they aren't getting pulled over the coals or feel left out due to exorbitant shipping costs. Times are tough, and the least we can do is make it a little easier on those who need it. Printing begins the week after the project funds and shipping begins the second they reach the studio (mid-June 2026).
Old-School Essentials Month
Old-School Essentials Month is a group-collab project led by Exalted Funeral and Necrotic Gnome, featuring a new 176-page OSE book — the Demonic Grimoire — and sister projects from 16 other renowned creators in the OSE community.
The theme of OSE Month 2026 is: DEMONS! Get ready for hordes of new monsters, adventures set in the realms of hell, fiendish new character options, and lashings of blood-dripping art.
Group Achievements
We will be announcing a series of achievements tied to the success of all OSE Month projects jointly! To start with:
All projects funded: When all OSE Month projects fund, we will arrange a community Ask Me Anything session on Discord, featuring creators from across the projects. This will be a chance to chat with the OSE Month creators about their projects.
Old-School Essentials (OSE) is a role-playing game of fantastic adventure inspired by classic games of the 1970s and 1980s. Players delve into forsaken ruins, battle fearsome monsters, explore haunted forests and perilous mountain ranges, sail the high seas in search of lost lands, recover fabulous treasures, and unearth secrets of ancient magic.
