Endgame

I joined after Endgame.ai had already launched, to help restructure a live product and bring the mobile app up to the web.

Year
2026
Role
Product Designer

The two sides had drifted apart, and the phone was the one behind. Anyone on a phone got less of the product than anyone on a laptop, which is a strange thing to have shipped. Bringing mobile up to the web was the first real block of work.

I joined after launch, so none of this started from a blank page. Once the two sides matched, the design work opened up into whatever came next.

The web lobby with its time controls and live games. This is the depth the phone had to reach.

Play Online lobby on web

What Was Done

Restructured the live product, then designed what came after. Puzzle Run, Club, Watch, Coach, Learn, gamification, custom piece sets and avatars.

How

The product was live with people already using it, so every change had to earn itself. I would rather move something small and provably right than redesign it to look considered. Holding one product language across both sides is what made the later features cheap to add.

The Hans vs Magnus spotlight. One trailer slot for new fans, quick to hide, never fighting Play Online.

Netflix partnership feature on the homepage

The community surface on mobile, in both skins.

Endgame Clubs on mobile in light and dark

The gameplay screen, tightened for the phone.

Gameplay screen on mobile

Three lives, one countdown. The run starts here.

Puzzle Run countdown

Pick a time, set a target, start the run. Web, web-mobile and app.

Puzzle Run setup across three screens

The run, continued.

Puzzle Run frame

The puzzle flow rebuilt for the phone.

Puzzle flow on mobile

Tournament cards, live boards, standings, chat. The event in your pocket.

Watch experience with live tournaments and boards

Team events on Watch. Coverage few platforms attempt.

Watch coverage of team events

Chapter checkpoints. Discovered Attacks, taught with a Nimzowitsch quote.

Learn chapter checkpoint on discovered attacks

The lesson system, another pass.

Learn lesson frame

Board and lesson side by side.

Learn lesson frame

Checkpoints that read like chapters.

Learn lesson frame

Review with Coach. Accuracy by phase, every move classified.

Coach review with accuracy breakdown

Standings stripped to signal. MP, GP, nothing else.

Team event standings

Match history and lineup in one overlay, on every platform.

Team card with match history and lineup

XP, streaks and achievements. The profile as a game board.

Player profile with XP and achievements

Avatars, piece sets, and the full reward loop.

Gamification frame

CZAR. The geometric set, drawn from scratch in two colorways.

CZAR piece set in two colorways

Hopea is named for an Indian wood type. Soft, rounded pieces on modern, playful boards.

Hopea piece set

One system, two skins. The whole product flips.

Credits: Damilare Osofisan, Kenny Olajide, Hans Niemann

Built with love and music by Damilare.

© 2026 Damilare Osofisan