Can Lenovo Essential G50-70 support my favorite game like GTA 5, Watch Dogs and Outlast?

Probably not.
That uses Intel HD graphics 4400.
Minimum requirements look like GTX 670M or HD 6800M.

Couldn't run watch dogs off of that lenovo laptop the other games low settings to medium with some lagging, intel hd graphic not really good for gaming

CAN Lenovo g410 support gta V?

Lenovo has, besides intel HD graphics, also AMD Radeon R5 M230, it has dual graphic cards support, which means you can run GTA V without any struggle.