TanZen HD vs Heliopoly

Find your Zen, with this updated version of the classic tangram puzzle game with over 500 puzzles! Choose a puzzle to solve, and try to fit all seven game pieces within the shaded puzzle area without overlapping. TanZen HD will recognize when the puzzle is finished. Pick up and play for two minutes, or two hours!

Heliopoly is orbital economics on the Mainline of our solar system (Helios): buy claims, burn propellant, duel rivals, and try not to go broke. Currency is Angzarr (⍼). Every buy, rent, and duel hits the Automated Interplanetary Asset Ledger. Last rocket flying wins — no timer, no “enough Angzarr.” THREE DOORS The first screen is three doors: • Arcade — the big door. One-minute play: Bot Evolution, Backup Fuel, and Hull Panel. Arcade never moves a charter you already started. • Journey — the full charter. Name a rocket, pick methane or hydrogen, and Launch against AI pilots from Mercury to the Saturn moons. • Lab — experiments. Gravity Duel practice, Deseret Letters, Urinal-rule Parking, and more. Lab unlocks after you finish one Arcade toy. Home brings you back to the doors without quitting a flight. In Journey, own systems, plant fuel depots, and stay solvent long enough for the ledger to write your name. ONLY ON THE MAINLINE • As of 2026, the only space game where a rogue Tesla can trash your fuel pods • Trade in Angzarr (⍼) — the ledger remembers every bad decision • Bring enough propellant, or become a very expensive monument • The only space game where “feral” doesn’t just apply to cats • Blank lane? Gravity Duel. Smile for the 2d6. • Last rocket flying. No timer. The cosmos does not care about your schedule. Got ideas? Contribute on GitHub: https://github.com/diagonalcounty/heliopoly — issues welcome, MIT, same engine as heliopoly.live. HOW AN EXPEDITION FEELS • Path — One circuit: Earth → Venus → Mercury → Mars → belt → Jupiter → Saturn → home • Claims — Buy planets and moons; own a full system and rent doubles • Stations — Trade hubs that get meaner as you collect more of them • Fuel — Landing is free; leaving a gravity well costs propellant • Parking — Sit still too often and claims can go feral back to the bank • Gravity Duel — Meet another rocket on a blank lane: secret Low/High, 2d6 PLAY YOUR WAY • 2–6 pilots (you plus AI, or full self-play) • Easy through Expert AI packs • Full Helios Ops Manual in-app: rules, glossary, rival-rocket civilopedia • iPhone and iPad NO WI‑FI NEEDED Heliopoly ships the complete game in the app package. Open the app and play — no account, no network required. Also free in the browser at heliopoly.live — same rules engine, open source (MIT). Not affiliated with Solarquest or any commercial board game.