🚀 Riot goes ALL IN on TFT - Why moving to Unreal Engine?
At Unreal Fest 2026, Riot revealed that reaching 300 million players and continuous massive growth are the driving forces behind this ultimate overhaul.
🤷Why rebuild from scratch?
Back in the day, TFT was speed-run in just 18 weeks, borrowing LoL's engine to get things going. But unlike League, TFT has to refresh game assets every single set with a ton of new mechanics using an ill-suited tool. This explains why the same bugs kept looping every set, forcing Riot to dump all their manpower into endless patching.
💁The perks of moving to Unreal Engine
On the technical side, UE is currently the ultimate solution for a game that constantly revamps its assets like this:
- GAS (Gameplay Ability System): Turns skills into Lego-like blocks with shared mechanics. Next set, devs just snap these blocks together to build a champion's kit—no more rewriting code from scratch, heavily slashing bug risks.
- Lower ping with Iris Networking: To solve bandwidth choking (a single TFT match has tons of champs, tacticians, and items crunching numbers across 8 players simultaneously), Riot partnered with Epic Games to adapt a tech that flawlessly handles bandwidth for Fortnite up to 100 connected players.
- Game Features Plugin: Isolates side modes from the main game core. A bug in a side mode won't break the rest of the game. (I guess this is exactly why special events only pop up mid-set once the major bugs are fixed).
- Merging PC and Mobile: Both sides will share the exact same UI and core source code. Riot saves massive maintenance time, and you get a smooth, synced experience no matter what device you're on.
🙆And many other UE perks that make rebuilding the game way faster. Basically, all the bugs, lag, and bad ping we've endured were because TFT had to piggyback on LoL's code. Stop blaming the devs guys, super hyped to see what Riot is gonna cook next!
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