Engine v5.0.4

A patch to For Real.

• Mobile is now opt-in at the door: your game plays on phones once mobile support is declared on the box and the game runs engine 5.0.3 or newer. Undeclared games stay desktop-only — phone visitors see an honest notice (with a "Try anyway") instead of broken touch controls.
• Skies cost almost nothing now — the same sunsets, the same drifting clouds, a fraction of the GPU. Cloudy skies that used to be the single most expensive thing on screen (especially on phones) now render from one texture lookup.
• Multiplayer sessions stop randomly reconnecting — players are no longer dropped for 8-11 seconds at a time.