Peace Under Heaven: Paper Game

Peace Under Heaven (天下太平, Cantonese: Tin Haa Taai Ping) — the Hong Kong classroom paper game, now on your phone.

Rock-paper-scissors decides every move: win a round to write a stroke of 天下太平, then plant your flags, raise shields, place cannons and fighter jets, and aim and fire to blast the other side's shields, weapons, flags and characters.

• vs Computer — standard or easy, any time (no internet needed) • Endgames — 20 comeback positions, four difficulties and hints; progress stays on your device and does not count towards the leaderboard • Pass & Play — two players, one phone • Online — invite a friend by room link (they can play in a browser), or find a random opponent; after 10 seconds without a compatible player, one of five labelled computer characters joins • Draw your own cannons, jets and shields; invent weapons after round 30, and nukes after round 45 • Free reflective nets — deploy after 20 completed rounds, up to two per side; each returns one whole landed attack and can be replaced after use • Sparkly MK nicknames, 90s Hong Kong net slang and quick chat • Cantonese, English, Traditional Chinese and Japanese

Online play has house rules: report and block players, and reports are dealt with within 24 hours. No account or sign-in needed. Some paper designs unlock by watching an ad, and there is one small banner at the foot of Settings; there are no ads during games. In Settings → Support 天下太平 you can buy No ads to remove all ads, or leave a tip to support the developer.

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