Скачал с офф.сайта, распаковал, запустил. Всё работает кроме звука.
При запуске в терминале, про звук выдает вот это:
No streaming was specified, but forcing to play sound streamed (See ISoundSource::setForcedStreamingThreshold): Sounds/Music/ambient_cavern.ogg
No streaming was specified, but forcing to play sound streamed (See ISoundSource::setForcedStreamingThreshold): Sounds/Music/ambient_forrest.ogg
No streaming was specified, but forcing to play sound streamed (See ISoundSource::setForcedStreamingThreshold): Sounds/Music/ambient_mountain.ogg
No streaming was specified, but forcing to play sound streamed (See ISoundSource::setForcedStreamingThreshold): Sounds/Music/world_intro.ogg