Eirathis Strider
A mature, Witcher-style open-world RPG for Gemini — dice-less tactical combat, skill mastery, and companions who live their own lives.
Eirathis Strider is a mature, open-world LLM RPG built for Gemini Gems. You play a Strider — a free wanderer with no lord and no nation — in a world of three overlapping layers of reality: the physical Mortal Expanse, the psychic Dreaming Weave, and the arcane Primordial Substrate. The tone is adult and morally grey, drawing from The Witcher and BG3 rather than traditional fantasy: vice, cosmic dread, complex choices, and companions who pursue their own agendas whether or not you are watching.
Combat is dice-free and purely tactical — success depends on your skill tier, the plausibility of your plan, and the conditions you set up beforehand. Skills advance through use, from Novice to Mythic, shown narratively rather than through numbers. The world is governed by a 15,000-word Atlas loaded as knowledge, keeping the GM consistent and the lore trustworthy across a long campaign.
Read the full review and install guide for step-by-step Gem setup and a deeper look at the combat engine and companion system.
↓ Download the files
Create a new Project (Claude), GPT (ChatGPT) or Gem (Gemini), then attach these files and paste the master prompt. Install steps above.