Immersive websites and 3D worlds that grow businesses.
We design and ship 3D websites, luxury brand & e-commerce sites, browser games and learning products for brands, schools and studios — from concept and art direction to code, launch and growth. Based in Ho Chi Minh City, working with clients in the US and worldwide.


HappyTownProducts people return to.
Every project is live or in public preview — click through and explore. Most run real-time 3D in the browser, so they work on any device without a download.


Playwatch Academy
A 3D learning world for PreK–Grade 6, built for Playwatch (US). Gabby flies kids to Reading Island, Math Mountain, the Science Lab and the Coding Rocket — every lesson is Watch · Read · Play · Do · Quiz, aligned to Head Start ELOF, Common Core, NGSS and CSTA.


DorisEdu Kids
A bilingual learning universe for kids 2–10: Vietnamese kids learn English, kids abroad learn Vietnamese — 1,000+ bilingual videos, 200+ stories & audiobooks, a 20-region game map, voiced lessons across 10 subjects, achievements and a shop. Ad-free, parent-approved.


HappyTown
A free 3D farm-and-town life game in the browser — farming, crafting, a village market, fishing, kart racing, a Vietnamese-landmark board game and mini-games. Developed & published by SentryX.


Kingdomland Kids
A 3D website for a Christian streaming app for kids 3–10 — a floating hex-island world, a 3D cast turntable, video carousels and a walkable 3D world, now in production on kingdomlandkids.com.


DORISÉ Patisserie
A luxury patisserie brand site — French pastries, birthday cakes and handmade gift boxes. Cinematic hero with floating product cards, a filterable menu, custom-cake ordering in 48h and same-day city delivery.


Doris Coffee House
A specialty coffee house in Saigon — dark, editorial and immersive: floating 3D coffee beans, a draggable “bean collection” carousel, a flip-through menu, weekly roasts, gifts and table booking.


Dorélle Paris
A luxury handbag brand told as a five-chapter 3D story around one icon, the Rose Chaîne: leather craft up close, a scroll-driven carousel of eight shades, the atelier’s five stations, a city lookbook and a reservable AW26 collection.


Doris Éclat
Haute joaillerie online: rings in 18k gold and platinum with a cinematic hero, a filterable ring edit, an “Atelier 3D” where clients turn each ring in their hand and design their own, a candlelight lookbook and private-viewing booking.


Idem
Marketing site for a Figma plugin that turns a finished promo frame into a Mailchimp or Klaviyo email draft — a scroll-to-slice live demo, a “what it refuses to do” section, one-job-one-price pricing and a plain-spoken FAQ.


Merchworks
Concept redesign for a custom branded-merch maker (US · Australia · Vietnam): a bright 3D merch hero you can preview in your own brand colour, a three-stage process, case studies, values and an instant free-quote flow.


Sapmok
Concept redesign for a South African vellies & barefoot-shoe brand: a closing-down sale told as a story — scroll-driven product hero, live countdown, six final drops, care & repair chapters and a farewell from the founders.


Coinaverse
A money-adventure for kids 7–14: a cinematic 3D landing page, a 2D learning app and a walkable 3D space city with portals to seven money worlds — saving, budgeting, investing, business, blockchain, debt and credit.


Happy English
A bilingual Vietnamese–English learning world on the HappyTown universe: tap any 3D object to hear its name, then practise listening, speaking, reading and writing through Duolingo-style lessons.


Happy Duo
A 2-player co-op 3D adventure in the HappyTown universe — 13 story chapters, playable together in the browser, no download.


DORIS NOIR
Our own apparel label — Collection I, crafted in Vietnam. Brand identity, campaign art direction and a dark editorial website: full-bleed campaign hero, collection, craftsmanship story, bilingual EN · VI.
One team from first sketch to launch and growth.
Creative direction, 3D, web and product in one studio — and with SentryX’s operators behind us, the marketing and growth side is covered too.
Immersive 3D websites
Landing pages and brand sites people remember: interactive 3D heroes, characters and scroll stories, built fast and mobile-friendly.
- Three.js / WebGL, optimised for phones
- Scroll-driven storytelling
- Graceful fallback, SEO-safe
3D games & worlds
Browser games and walkable worlds — farming, adventure, co-op, learning — that run on any device with no install.
- Game & level design
- Characters, animation, economy
- Web, iOS publishing
Learning products & edtech
Lessons, quests and rewards inside 3D worlds — language, money skills, STEM — for kids, parents and schools.
- Curriculum-aligned (Common Core, NGSS…)
- Progress, rewards, parent & teacher views
- Bilingual and voice-enabled
Brand & e-commerce websites
Cinematic brand sites and redesigns with menu, booking, enrollment or checkout flows — like DORISÉ Patisserie and Doris Coffee House — plus a CMS your team can edit.
- 90+ PageSpeed target
- Booking & e-commerce flows
- Hosting, security, analytics
Brand & creative direction
Characters, identity, art direction and campaigns — one visual language from logo to game world to social.
- Identity & design systems
- 3D characters & key art
- Campaign creative
Growth marketing
With SentryX’s Growth Operators: SEO, Google & Meta ads, social content and email — done for you, month to month.
- Local & national SEO
- Paid ads & social content
- Email + monthly reporting
Discover
A short call about your audience, goals and what success looks like.
Concept
We show you real concepts — a 2D and a 3D direction — before you commit.
Build
Design, 3D, code and content, shipped in weekly visible iterations.
Launch & grow
Hosting, analytics and marketing so the new experience brings people in.
We don’t consult. We operate. We own outcomes.
SentryX is an integrated growth team embedded inside growing companies ($1M–$20M) — Growth, Product, Finance and System operators across the US, Vietnam and the Philippines. Doris leads creative: brand, content, campaigns and the 3D products we ship.


Intac Advisory
Lucy’s: 30x revenue growth in 11 months
- $60K/mo recurring wholesale revenue, up from $0
- 46 wholesale accounts, distribution built from zero
- Finance, Growth & System operators
Tool Mart: #1 on Google, ahead of Home Depot & Lowe’s
- 4x organic search growth in 30 days
- First e-commerce channel after 50 years
- E-commerce, SEO, email & content
See your brand in 3D — before you pay anything.
Send us your website. You’ll get two free concepts built from your own logo, images and copy: a clean modern redesign and an interactive 3D world your visitors can fly through. Love one? We build it. If not, no hard feelings.



Led by Doris — designer, director, builder.
Doris is a multi-disciplinary creative based in Ho Chi Minh City and the Creative Director at SentryX. She shapes brand, content and campaigns that move the needle for clients — and builds products of her own: HappyTown, DorisEdu Kids, Happy English, Happy Duo, Coinaverse, and the 3D worlds behind Playwatch Academy and Kingdomland Kids.
Her favourite projects sit where play meets purpose: games that teach, websites that feel like places, and characters people actually want to spend time with.
Let’s build something people come back to.
Have a brand, a learning product or a website that deserves to feel special? Tell us what you’re building — we usually reply within a day, and we’re happy to send a free concept first.
