Fantasy Grounds - D&D Classics: The Lost Island of Castanamir

Overview

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir is a Steam DLC connected to Fantasy Grounds VTT. It was prepared by SmiteWorks USA, LLC, published by the listed publisher, and released on Feb 10, 2026. This page focuses on the store listing, screenshots, price, requirements, and its relationship to the main game rather than presenting it as a normal live-player game.

Store reviews and relationship

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir is a DLC, so player-count observations and tracked peak are not meaningful in the same way they are for a base game. The useful signals here are reviews, store recommendations, price, platform support, and the link back to Fantasy Grounds VTT.

Language and system requirements

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir is available in 1 languages including:

2 regional rating boards including dejus and steam germany. Steam has not published complete Windows, macOS, and Linux requirement text for this game yet.

Recommendations and store value

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir has recommendation data pending. Twitch streaming and unit-sales estimates usually belong on the parent game page, while this page is better for checking the DLC, price, media, and store details.

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir overview details

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir is tracked as Steam Store content with pricing, reviews, packages, media, requirements, and its relationship to the parent app.

Steam Store description

D&D Classics: The Lost Island of Castanamir It is terribly cold. You swam for your life to this mysterious island, losing most of your provisions in the process, only to find it barren of all but grass. A biting wind from the north drives through your wet clothes, chilling you to the bone. Night is falling and promises even colder temperatures; you wish this place had even a bush to burn as firewood. Your stomach has just begun to complain about the lack of dinner when one of your companions calls, and you rush to his side, hoping he's found a way to turn grass into a sandwich. Instead, he points to the ground in front of him. "Look there." Set in a shallow depression in the ground is a stone door. Your friend reaches down and gives a tug, and the door swings slowly open on creaking hinges, revealing a descending stair. The first thought that crosses your mind is whether it would be better to freeze to death up here in the wind or fall into the hands of Castanamir the Mad, the unpredictable. This adventure is for use with the ADVANCED DUNGEONS & DRAGONS(R) rules. This adventure cannot be played without the AD&D(R) rules produced by TSR, Inc., 1984 TSR, Inc. All Rights Reserved. Printed in U.S.A. " Adapted for Fantasy Grounds by: Kevin King Requires: The free Fantasy Grounds virtual tabletop (VTT) software and a one time purchase of the D&D Classics - AD&D 1E/2E ruleset. Screenshots may differ from what you see in-game based on the extensions and ruleset you have loaded.

SteamPulse editorial summary

Fantasy Grounds - D&D Classics: The Lost Island of Castanamir is listed as a DLC with $9.99. It supports Windows, macOS, and Linux, belongs to Single-player, Multi-player, Co-op, Online Co-op, LAN Co-op, Shared/Split Screen Co-op, Shared/Split Screen, and Cross-Platform Multiplayer, and is associated with Indie, RPG, Strategy, and Free To Play. Because it is a DLC, SteamPulse focuses on its Store listing, relationship to the parent app, media, packages, and metadata rather than treating it like a standalone concurrency page.

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.