UE 4 doesn&#x27;t have UnrealScript anymore. Quoth Tim Sweeney: <a href="http:&#x2F;&#x2F;www.gamasutra.com&#x2F;view&#x2F;news&#x2F;213647&#x2F;Epics_Tim_Sweeney_lays_out_the_case_for_Unreal_Engine_4.php" rel="nofollow">http:&#x2F;&#x2F;www.gamasutra.com&#x2F;view&#x2F;news&#x2F;213647&#x2F;Epics_Tim_Sweeney_...</a><p>&gt;Another realization the team had was that the separation between the C++ code and UnrealScript in Unreal Engine 3 held things back for the engine and for programmers of games. &quot;You end up with basically two different programming worlds,&quot; says Sweeney. &quot;Each is nice in its own way, but the boundary between is a very messy place.&quot;<p>&gt;&quot;We removed UnrealScript, and went strictly to C++, and we have seen huge dividends from that,&quot; says Sweeney. &quot;It would have been almost impossible to get to the point we were today, to release the whole codebase.&quot;