Welcome to the

Portfolionator!

Bzzzzzt!

Hi! I'm Jacob!

jacob@yupcup.games


I'm a system designer, programmer and artist based in Oslo.
I started developing games as a hobby when I was 10 years old, and I've never stopped since.

I'm particularly inspired by systems that create situations far beyond the sum of its parts.
e.g. Mosa Lina's everything, Breath of the Wild's element simulations, Arc's ambitions

I'm also interested in games with streamlined systems that lead to much more potent gameplay.
e.g. PEAK's energy system, The TTRPG "A Sliver of Fate"'s lack of health - instead losing parts of your character

Lastly, I'm a big fan of weird TTRPGs. Get in contact if you want to play anything!
Favourites: Grok?!, CAIN, Mothership, Downcrawl, Itras By, Fate Accelerated

Showreel

Portfolio

Calamity Clash

A board game for 2 people
about monsters and positioning

A board game with simultanious battle mechanics and quick rounds. Made with the goal of recreating the feeling of competitive Pokémon battles, while cutting all need for memorization (Type charts, calcs, meta, ...).

Awards

At Norwegian Game Awards:
  • 2025: Nominated for Most Innovative
  • 2026: Nominated for Most Innovative

My role

  • Solo developer
  • Used excel and python to automatically update card pdf
  • Made in free time over 1 year (Jan. 2025 - Mar. 2026)

WhirlWarp

A momentum-based digging 2D platformer

Whirlwarp is a 2D platformer that features the ability to dig into the ground. The ground will always push you out towards the closest surface, resulting in dolphin-like gameplay.

Awards

At Norwegian Game Awards 2024:
  • Winner of Game of the Year
  • Nominated for Best Gameplay Design

My role

  • Solo developer
  • Made in Unity
  • Made in 8 months (Aug. 2023 - Mar. 2024)

Fjord Fury

A multiplayer boat racing game
where doing tricks is key in taking the lead

A game made with the IP of Megapop's Trolls vs Vikings, featuring boats that must do combinations of tricks to use abilities.
Through production I lead a team that made systems for multiplayer, tricks, abilities, catch-up mechanics and more.

Awards

At Norwegian Game Awards 2026:
  • Nominated for Best Gameplay Design

My role

  • Lead System Designer- lead a 4 person team
  • Made in Unity
  • Made in 6 weeks by 20 students (Oct. 2025 - Dec. 2025)

Wilderfeast
Character Creator

A TTRPG Character creator hosted on
Horrible Guild's official website

A character creator and dice roller for the game "Wilderfeast" by Horrible Guild.
It uses official art and adaptations of the book's layout to retain the feel of the original product.

My role

  • Solo developer
  • Made using vanilla javascript
  • Made in free time over 9 months (Jun. 2025 - Apr. 2025)

Gamejam games

More on my itch.io

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