⏳ ONE DECISION. INFINITE HISTORIES.
You are a Time Traveller — sent to history's most pivotal moments with a single mission: observe. But history has a way of demanding your involvement.
Every choice you make sends ripples through time. Save a library. Spare a general. Back a rebellion. Each decision rewrites what comes next — and not always in ways you expect.
⚔️ TRAVEL ACROSS 13 HISTORICAL ERAS
Step through time to civilisations that shaped humanity:
• Ancient Egypt (2,500 BCE) — counsel the Pharaoh at the height of pyramid construction
• Roman Empire (50 BCE) — stand at the crossroads of Republic and Empire
• Viking Age (800 CE) — sail with Norse explorers to unknown shores
• Medieval Kingdom (1,100 CE) — forge alliances in a world of castles and crusades
• Feudal Japan (1,600 CE) — navigate honour, duty, and the way of the sword
• Age of Discovery (1,490 CE) — chart the course of exploration itself
• Industrial Revolution (1,850 CE) — decide between progress and the cost of it
• World War Era (1,940 CE) — history's fate hangs by the thinnest thread
• Modern World — the present is more fragile than you think
• Near Future — the choices made today echo into tomorrow
• Mars Colony, Year 3000, and beyond…
🦋 YOUR GUARDIAN WALKS BESIDE YOU
CHRONOS — an ageless entity who has watched every age rise and fall — will counsel, warn, and sometimes challenge you. The Guardian knows what happened. Only you can change it.
🌍 COLLECT ALTERNATE TIMELINES
Every run ends with a revelation. Depending on the path you walked, a new timeline is forged: the Steam World, the Ocean World, Robot Earth, the Crystal Kingdom, the Solar Empire — 10 stunning alternate realities to discover and collect, each with unique artwork and lore.
🏆 120 ACHIEVEMENTS. ENDLESS REPLAYABILITY.
No two runs are identical. Your Stability score, hidden historical variables, and Guardian warnings combine to produce outcomes that shift with every playthrough. Chase all 120 achievements across multiple eras to master the full butterfly effect.
🎨 PERSONALISE YOUR JOURNEY
Unlock portals, particle effects, profile frames, legendary titles and badges as you level up. The Season Pass unlocks an exclusive cosmetic collection and a premium track of rewards.
✨ PREMIUM FEATURES
• Cinematic era backgrounds and immersive Guardian voice lines
• Daily missions and rotating challenges with XP rewards
• Full offline play — no internet required
• Completely optional ads — watch a rewarded ad for double XP, or skip entirely
• No pay-to-win: all gameplay content is free
Time Traveller: Butterfly Effect is a narrative puzzle game for players who love history, branching stories, and the philosophy of cause and effect. Play a run in 15 minutes or lose yourself for hours across eras.
The past is not fixed. What will yours look like?
⏳ BEGIN YOUR JOURNEY.
Shape history across 13 eras. Every choice triggers a butterfly effect.