We build what others can't

Students practise inside hundreds of curriculum-aligned scenarios across GCSE French, Spanish, and German, IGCSE languages, AP Spanish, IELTS, and CEFR pathways, with feedback tied to the specific exam context and rubric logic.

Our new AI Class Report and Lesson Plan Generator turns real classroom performance data into targeted next steps for teachers, surfacing misconceptions, weak vocabulary, and speaking gaps before drafting actionable follow-up activities.

That same immediacy now extends to platform delivery. Deterministic versioned blob URLs and edge caching reduce origin load, shrink time to first byte, and preserve the momentum of Marvely's feedback-and-retry learning loop for students around the world.

The ambient occlusion system uses a Minecraft-style per-vertex algorithm with four occlusion levels (brightness values 0.55 to 1.0), creating natural corner darkening and depth perception that transforms the visual quality of every world.

The 3D grass system renders up to 60 blades per block at full LOD with four segment tiers based on height, a sparse LOD of 25 blades per block for distance rendering, and crossfade dithering between LOD bands. Grass also casts shadows and receives AO on the ground beneath.

The 3D leaf system uses instanced leaf cards across two LOD tiers with per-instance variation in brightness, branch type, and variation seed. Combined with the grass and shadow systems, the result is a visual fidelity that no other browser-based game — educational or otherwise — has achieved.

The shadow map operates at 8192×8192 resolution (4096×4096 on lower-end GPUs), delivering approximately 74 texels per block — enough for sharp, detailed shadows even on individual grass blades.

The shape registry system supports full cubes, stairs (normal and inverted), slabs, tiles, doors with hinge/open state, walls, and wall corners. Each material can have up to 8 shape variants.

Collision detection uses actual block geometry rather than simple bounding boxes, meaning players can walk up stairs naturally, duck under slabs, and pass through open doors.

The escape room system uses a novel cryptex-based puzzle mechanic with colour-coded math blocks: red for one-time operations, blue for reusable operations, green for gate checks, and purple for start/reset points.

Multi-block placement support enables complex structures like double-height doors, and each shape has its own stud pattern for visual consistency across materials.

The learn-to-code system runs inside Blockerzz creative mode, teaching step-by-step coding through block-based programming. Function blocks let students create reusable procedures — real programming concepts presented in a way that feels like play.

World persistence means students can save their progress and return to continue where they left off. A reset function lets them restart from the original tutorial state if needed.

Monster Brawl uses a real-time strength meter tied directly to quiz performance. Correct answers make the player more powerful in combat, creating an immediate and compelling incentive to learn.

With four distinct game modes, Blockerzz now offers the widest variety of quiz-driven gameplay of any classroom platform — from the precision archery of Arrow Quest, to the multiplayer treasure hunting of Gold Rush, to the competitive combat of Monster Brawl.

Each game mode integrates with the same quiz system, meaning any quiz content works across all four modes. Teachers choose the game mode that best suits their class and the content automatically adapts.

Wherever a teacher is in the world and whatever they teach, we use AI to generate their entire course in their native language so quickly that it appears the content was there already.

It was a significant feat of optimisation to make it work so rapidly and effectively.

Teachers can also create and edit their own custom courses of 400 quizzes in seconds.

Getting a state-of-the-art AI speaking app working in the browser was a non-trivial exercise that took months of iteration and testing. By working in the browser on any device, teachers can instantly deploy it in the classroom with nothing to install.

We also invested heavily in carefully designing hundreds of exam-aligned scenarios covering GCSE French, Spanish, and German, IGCSE languages, High School and AP Spanish, IELTS Part 1 and Part 3 as well as our own Marvely scenarios mapped across CEFR levels A1 to B2 for younger learners.

According to the Education Endowment Foundation, regular personalised feedback is one of the most impactful things teachers can do to help students succeed.

But teachers struggle to find the time to do this.

We made it possible for teachers to provide this feedback instantly and efficiently whilst being able to customise it to their own or their school's feedback style.

Whilst it took our direct competitors more than six months to catch up, our AI-powered quiz creator still packs a special punch with advanced and unique features.

Most notably is our unique ability to use our digitised standards to create quizzes with questions that are automatically tagged and aligned to standards.

These quizzes feed directly into producing mastery data for teachers.

Blockerzz was a remarkable achievement from day one — a full Minecraft-like game running instantly in the browser on any smartphone, tablet, or desktop. We even implemented a VR version that works in an Oculus headset.

With 12 man-months of effort and many advanced optimisations to make it run in real-time on low-end smartphones, the game was a unique and powerful piece of IP letting 60 students play together in a shared world.

Since its launch, Blockerzz has evolved far beyond the original two games — now featuring four quiz game modes, maths escape rooms, learn-to-code tutorials, shape-aware building, and a graphics engine with ambient occlusion, real-time shadows, and 3D vegetation. The vision we had at launch has been realised and surpassed.

We pioneered whole class team quiz games back in 2017, but in 2022 we took team quiz games to an entirely new level, including our Goalzz game that tied nicely into the World Cup year.

To get Battlerzz to work on poor classroom connections we implemented our own 2D JavaScript games engine that delivers animated sprites seamlessly and efficiently to the browser.

We spent the whole of 2019 building the world's first – and possibly the world's only – mastery-based dashboards for school leaders.

Whilst other district and state-level dashboards typically report on end-of-year summative test data, our dashboards uniquely aggregate mastery data from every quiz in every classroom every day, giving school leaders at all levels daily insight into the academic progress of every class.

Google was so impressed with our use of Google BigQuery as the backend, they wrote a case study. Our implementation allows breakdowns to be generated in seconds rather than the many minutes typical of other platforms.

Since launching our mastery features, we've continued to invest and have digitised around 500 released tests from the Texas, New York and English education departments.

In each test every question is tagged to the respective learning objective in the curriculum or standard so that teachers can effortlessly deploy whole tests or use them as a question bank to create their own.

Our original Hoopzz and First to the Flag team-based games were what took us viral.

Long before our competitors moved on from boring leaderboards we were turning classrooms into places where even reluctant students were keen to participate.

By focusing on team games we ensured that even less able students felt included and were able to contribute.