Call of Cthulhu online on Adarle 20
Call of Cthulhu is the cosmic-horror roleplaying game inspired by H.P. Lovecraft, where you play fragile investigators uncovering mysteries the mind can't fully grasp. It runs on the percentile d100 system: you roll a d100 against your skills, with no classes or levels. The standout mechanic is Sanity, a resource that erodes as you face the unspeakable. On Adarle 20 you book online games with verified Keepers (the game master), pay securely in-platform, and play over video using virtual tabletops like Roll20 or Foundry. It's perfect for intense one-shots.
At a glance
- Dice
- d100 (percentile)
- Complexity
- Medium
- Tone
- Cosmic horror
- Game master
- Keeper
- Setting
- Lovecraftian horror (1920s & beyond)
- Best for
- Mystery, investigation & one-shots
What playing Call of Cthulhu online is like
Forget heroes cleaving orcs in two. Here you're an ordinary person (a journalist, a doctor, an antiquarian) investigating what no one should see. The engine is the d100: you roll percentiles against skills like Library Use or Psychology. There's no leveling up and no heroic blows; a single gunshot can kill you, and the tension comes from knowing it.
The Sanity mechanic is the beating heart of the game. Witnessing horror forces a Sanity roll; failing erodes your mind with phobias or temporary madness. The game rewards investigating, deducing, and surviving over combat. It works beautifully online: the Keeper controls clues, atmosphere, and hidden dice while dread builds over video.
Why play Call of Cthulhu on Adarle 20
Every Keeper has a public profile with real player reviews, so you can choose someone who masters the slow burn of mystery and atmosphere, not just combat. Payment is secure inside the platform, with OXXO available in Mexico, so you book without sharing sensitive details off-site.
Filter tables by game system, experience level, language, and price until you find the exact game. Many tables are flagged beginner-friendly, ideal if you've never rolled a d100. You can browse Keepers and games, read reviews, and book a one-shot or a week-to-week series.
Start your first game
You don't need to know any Lovecraft or read a rulebook. Browse the Call of Cthulhu tables, pick a beginner-friendly one in your language, and book in minutes. The Keeper walks you through building your investigator and the rules during the session itself.
Browse Keeper profiles, compare reviews and prices, and choose between a chilling one-night one-shot or a longer investigative series. Book with secure payment and get ready to lose a little Sanity.
Never played a tabletop RPG before?
I'm new to tabletop RPGs →Frequently asked questions
Do I need experience to play Call of Cthulhu?
No. The d100 system is very intuitive: you roll a d100 and try to land under your skill, with no classes or complex math. Many tables on Adarle 20 are flagged beginner-friendly, and the Keeper helps you build your investigator and understand the Sanity mechanic during the session itself.
What do I need to play online?
Just a stable connection, a mic, and video. The Keeper runs the game over video call and uses a virtual tabletop like Roll20 or Foundry for sheets, maps, and dice. You don't need to buy the rulebook or physical dice: your investigator sheet and percentile rolls are handled on the Keeper's virtual tabletop.
How much does a game cost?
Each Keeper sets the price based on length and experience, and you see it before booking. You can filter tables by price to match your budget. Payment is secure inside Adarle 20, with OXXO available in Mexico, so you reserve your seat without any deals off the platform.
One-shot or campaign?
Call of Cthulhu shines in one-shots: a self-contained, chilling mystery in a single session, ideal for trying the system. But there are also investigative campaigns that unfold week to week, where your investigators dig deeper into cosmic conspiracies. On Adarle 20 you find both formats based on how much time you want to commit.