Counter-Strike 2 reinforcement-learning lab
Engineering · Built the training environment and bot experiments

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Tell me what you need to change, what your team has already tried and when you’d like to start.
Discuss a similar projectOn 2 June 2026 I started an empty repository at 11:24. By 14:08 the same afternoon, it held a working 3D explorer for the maps of Bungie's Marathon. By 08:38 on 4 June it had a squad simulation, adaptive rendering, a soundtrack and a design language borrowed from the game. It's live at marathon.withseismic.com.
It's a fan project. Nobody paid for it and nobody asked for it, but it's the clearest example I have of how my work has changed. The technical side was never the hard part. The hours were, and for years they decided what got cut before I'd written a line. This time nothing got cut, so taste led the project instead of the time I had.
Fan-made map explorer for Marathon
Design & engineering · Built the 3D explorer, squad sim and soundtrack
Read the full case studyTau Ceti IV is a 3D surface-data explorer for the three maps in Bungie's Marathon. It's an independent fan project rather than client work, built over three days with Claude Code, and the role covered the design, the engineering and the soundtrack.
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I work across strategy, design, engineering, marketing, sales and operations. Over more than a decade, that has included work for Groupon,
Vouchercloud, AWIN and
The Motley Fool, product engineering for
Framer,
Contra
and
STRV
, and founding and selling three software businesses of my own.
I’m good at taking a complicated business problem, making the work clear and seeing it through. That can mean deciding what to build, designing the experience, writing the software, finding customers or improving how the business runs. I work with colleagues across those disciplines and take responsibility for the work myself.
In my own businesses, product decisions, customer acquisition, sales, revenue and day-to-day operations have all been my responsibility. I bring that same connected view to client work, from shaping the offer to building the product and measuring whether it works for the business.
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On 20 September 2026, the Vouchernaut repository was an empty starter. Twenty-two days later, on 12 October, vouchernaut.com had fifteen live products on it, from checked codes for 995 UK shops to a platform for brands with its own Shopify app. Behind them were 772 commits and about 530,000 lines of code, 145,000 of them tests.
I did every job myself: product, design, engineering, operations and selling. Agents did most of the typing while I wrote the specs, made the calls and checked the work. This is how that went, and why I came back to a site I started ten Black Fridays ago. There's a longer version too, with every feature and decision in it: the 40-page case study as a PDF.
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“Doug was incredible to work with. He operated quickly & efficiently … 10/10!”
Allison NultyHead of Product @ ContraContra ↗Reacquired and rebuilt with AI agents in ten days. Shows ecommerce stores which coupon extensions and AI shopping agents are in their sessions, and what they cost.
Dinners With FriendsA social events platform for people who want more from their social life: hosted dinners where strangers become friends. More than 500 guests so far.