Heapboxing

Romanian software studio · Est. 2025

We build small games and software that feel finished.

Heapboxing SRL writes custom software for clients and ships its own HTML5 games — designed, built, tested and released end to end from Popești-Leordeni, Ilfov.

See the portfolio Company details

Custom software HTML5 games Web · Instant Games · Playables

Classic Solitaire game icon: a king, ace of spades and queen fanned out on a green card table

Portfolio

Games and products we build

One product in the catalogue so far, and it is the one we know best: a complete Klondike solitaire built on our own rules engine and painted procedurally on a canvas.

Classic Solitaire icon — a king, ace of spades and queen on a green felt table
In-house product

Classic Solitaire

Traditional Klondike solitaire — seven tableau columns, four foundations, one deck. The rules engine is written from scratch in TypeScript, the cards are painted at boot with zero image assets, and a wordless five-step tutorial teaches the first deal without a single line of copy.

  • Draw-one default with a draw-three toggle
  • Undo, tap-to-play and auto-complete
  • Seeded, screened deals — no dead ends
  • Responsive layout in both orientations
  • Card-drop audio, fetched on first tap
  • No ads, no in-app purchases, no accounts
  • TypeScript
  • Phaser 4
  • Web
  • Facebook Instant Games
  • YouTube Playables

Currently published through Facebook Instant Games and YouTube Playables. Privacy details: privacy policy.

The studio

A micro-studio that finishes what it starts

Founded in March 2025, HEAPBOXING SRL keeps a deliberately narrow scope: small, complete products, written by the people who sign off on them.

  • Custom software

    Client-oriented software built on request — web applications, tools and integrations, scoped so they can be shipped and maintained.

  • HTML5 games

    Gameplay code, rules engines and procedural art pipelines, tested and tuned for repeat play rather than a single demo.

  • Multi-platform release

    One codebase shipped to the web, to Facebook Instant Games and to YouTube Playables, with each host's storage, pause and packaging rules handled.

Contact

Get in touch

Company correspondence goes to the registered office. Official identification details for invoices and contracts are listed in the footer.

Registered office

HEAPBOXING SRL
Str. Amurgului 58
077160 Popești-Leordeni, Ilfov
Romania

Registry records

Company data for this site is taken from the public trade-registry listing on ListaFirme.

View the HEAPBOXING SRL listing

Legal

Read the privacy policy for Classic Solitaire, or the data deletion instructions.