Kamar Gelap (Dark Room) is the second album by Indonesian independent music band Efek Rumah Kaca.

[1] Some musicians collaborated with Efek Rumah Kaca during recording, such as Ramondo Gascaro on "Laki-Laki Pemalu",[2] Ade Paloh provided backing vocals and Iman Fattah played guitar on "Jangan Bakar Buku".

[3] The themes of the album are life style, love, phenomenon, environment and social critic.

[1][3] Social commentary can be found on "Mosi Tidak Percaya", with its lyrics regarding mistrust of the government[2] and "Jangan Bakar Buku".

[3] Environmental themes can be found on "Hujan Jangan Marah" (about flooding) and "Banyak Asap Di Sana" (about economic equality and urbanization).