Profile photo of Arno Oosterom, a professional Game Master

Arno Oosterom

Game Master

Profile photo of Arno Oosterom, a professional Game Master

Arno Oosterom

Game Master

Arno Oosterom

5(1)

  • Delft
  • Europe/Amsterdam
  • In person & online
  • English, Dutch
I came into contact with the “Red Box” D&D Basic at the age of 12, and from that moment D&D, or rather roleplaying, has never left me. With over 35 years of experience in the game, I, as a passionate Dungeon Master, focus primarily on creativity and detailed worlds and stories. My style is entirely roleplay-focused and always leaves room for players’ initiatives. For me the magic lies in the freedom to shape the story together, and I design my campaigns with interactive elements that invite players to think off the beaten path.

I enjoy weaving small details into the story, the characters, and the world. What sets me apart is my ability to create a world that is clear in my head, even when it’s based on an existing setting. I often think several steps ahead, so there’s always more going on than is visible. This creates a sense of depth and complexity, giving players the feeling that there’s always more to discover. I like to work with mood imagery and atmosphere, and I often choose a smaller scale with high complexity, which offers a unique and immersive experience.
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What players say about Arno Oosterom

  • It was a great afternoon with DM Arno! He had called me beforehand and later also our son to coordinate things. Because of this it became a very fitting session for the group of 12 to 15 year olds, which connected really well with their world and experiences. Wonderfully prepared and it turned out exactly as hoped.

    Samira

Game systems I run

  • Dungeons & Dragons

    • High Fantasy +7
    • 1 – 7 players
    • Moderate rules

    Forge your own fantasy tale with Dungeons & Dragons. Create a party of bold heroes, outsmart traps, bargain with dragons, and claim treasure in vivid worlds. Think the fellowship spirit of The Lord of the Rings, only you choose the paths, the battles, and the ending.

    View system: Dungeons & Dragons
  • Warhammer Fantasy Roleplay

    • Dark Fantasy +7
    • 2 – 6 players
    • Detailed rules

    Warhammer Fantasy Roleplay plunges you into the Old World, a grim, disease-ridden land of cults, corruption and hard choices. Think The Witcher, but with black humor and worse odds. Gritty investigations, lethal fights and messy magic, guided by our Game Masters.

    View system: Warhammer Fantasy Roleplay
  • Shadowrun

    • Cyberpunk +7
    • 3 – 6 players
    • Detailed rules

    Neon streets, ruthless megacorps, and awakened magic collide. In Shadowrun you are professional criminals pulling heists, cracking systems, and bargaining with spirits. Think Blade Runner with elves and spells, run by a pro Game Master who keeps the chaos sharp and fun.

    View system: Shadowrun
  • RuneQuest

    • Mythological +7
    • 2 – 6 players
    • Detailed rules

    RuneQuest brings mythic Bronze Age adventure to Glorantha, where gods, spirits, and clans shape every choice. Think The Iliad with runes and spears. Percentile skills, gritty hit location combat, and cult-bound magic make every victory feel earned and memorable.

    View system: RuneQuest

Genres I love

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