UFO:AM Localization Manager v1.0 (ALPine plug-in: http://www.strategycore.co.uk/files/index.php?dlid=34 )
Switch between available game languages similarly to old X-Com series.
Don't forget to grab and install localization resources, plug-in is useless without them.

Description: This is the ALPine plugin that lets you switch between languages.
File name:   LocaleManager-r1.0.alp
File size:   2.467 Kb

Description: Localization resources pack #1. ENG, FRA, GER and ITA.
File name:   Locale-WE-combo-v1.3-r2.alp
File size:   0.630 Mb

Description: Localization resources pack #2. CZH, HUN and POL.
File name:   Locale-EE-combo-v1.3.alp
File size:   0.526 Mb

Description: Localization resources pack #3. RUS (unofficial, incomplete).
File name:   Locale-RU-v1.3-r0.81.alp
File size:   0.293 Mb

By Alchemist, more information here:

http://fire.prohosting.com/alcemicu/
http://www.strategycore.co.uk/forums/index.php?showtopic=2751