If the game was installed outside of a typical launcher, you might need to change the system registry.
There are several reasons why players may want to translate Dead Island: Riptide from Russian to English:
Dead Island Riptide is a chaotic, B-movie style zombie game. Its strength lies in brutal, co-op melee combat and weird weapon crafting—not its complex story. Don’t let a language barrier stop you from enjoying the flooded, zombie-infested archipelago of Henderson.
You will need to download English language files from a trusted source (use at your own risk, scan with antivirus).
Dead Island: Riptide is an action-packed first-person shooter developed by Techland and published by Deep Silver. The game was released in 2013 for Microsoft Windows, PlayStation 3, and Xbox 360. The game takes place in an open-world environment, where players must navigate through a zombie-infested tropical island, completing quests and fighting off hordes of undead.