by Retro Dev · Building
Nominated for Builderman Award of Excellence 2022 Create and play your own classic Roblox games. Our engine can simulate any time period between early 2009 to mid 2015!
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 30d player curve, so a build can be read against what it shipped into.
competitor launches — the biggest platform launches in this window ([FIXED]🐒 +1 Speed Monkey Escape, The Block, (LIMITED x BIG UPDATE 🏍️) Drag Drive Simulator, …). toggle below the chart.
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.
The tracked Building games closest to this one in peak concurrent players this window, as hourly averages on one shared axis — rivals at the same scale, so every line has room to move. The genre leader, Theme Park Tycoon 2, peaked at 11,527 — 8× this game, too far ahead to chart at this scale. Genre is Roblox’s own label; games we’ve never tracked aren’t candidates.
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.