Answer 1

Majority of computer games and game engines are developed in C++. It is difficult to provide list of all games here but some of them are
Doom III engine,
Counter Strike,
Sierra On-line: Birthright,
Hellfire,
Football Pro,
Bullrider I & II,
Trophy Bear,
Kings Quest,
Antara,
Hoyle Card games suite,
SWAT,
Blizzard: StarCraft,
StarCraft: Brood War,
Diablo I, Diablo II: Lord of Destruction,
Warcraft III,
World of Warcraft,
Starfleet Command,
Invictus,
PBS's Heritage: Civilization and the Jews,
Master of Orion III,
CS-XII,
MapleStory etc.

Electronic Art's video game engine is coded in c++.

All Microsoft's games are written in c++.