✈️ Build the BIGGEST airline in the world!
🗺️ Unlock 50 cities around the world
📈 Upgrade planes, seats, speed, and ticket prices
🌟 ADVANCE for permanent boosts and a huge upgrade tree
🎁 Complete quests, spin for rewards, and claim free gifts
🏆 Grow your airline and climb the leaderboards
🎟️ Use code TAKEOFF for free cash!
👍 100 Likes for New Update
💵 Join the group for a cash bonus
Each stem is one shipped update, as tall as the gap it closed — how long the previous build stayed current. The scale is logarithmic so one quiet month doesn’t flatten a year of daily shipping. Behind the stems is the same 8d player curve, so a build can be read against what it shipped into.
CCU is sampled every ~30 min and keeps updating until a game spends a full month below 100 concurrent players — after that it’s considered dormant and collection stops.
Cumulative up/down votes and the resulting approval rate, sampled every ~30 min whether or not the game is currently charting. A gap marks a stretch where no vote reading was recorded.