Worst games ever.

Just Cause. I still finished it, but it was a painful process. There are many more but I, thankfully, can't remember their names.

Ethnic Cleansing (2002), haha.

Not the worst, but pretty bad:

Humanity Asset. Boring combat/platforming, broken English, bad UI, unintuitive everything, just feels flat. It's like whoever made it looked at other games and said 'I can do that!,' threw together various components, but missed that little thing called fun.

wanderlust: rebirth

ride to heel retribution

Big Rigs Over The Road Racing

The one that stands out for me is Battlefield 4.

skyrim

The You Testament

About 95% of mobile games.

Harvester :D

There are too many to list them, better focus on the hundreds of good games.

PS : Flappy bird itself is a rip off so...

Dragon’s Lair....claimed to be a game, but the "play"-factor was the same like a vhs with remote control (pause/stop)

Goat Simulator. Dunno how there are some people that find it funny, that game is a piece of shit. And yeah, I didn't play it.

Unearthed: Trail of Ibn Battuta is my absolute winner...

Day One: Garry's Incident is close, but that game at least has some interesting ideas...

Custer's Revenge - manages to be terrible on every level.

Shadow Harvest: Phantom Ops

Dreadful, awful, terrible, shit. Closed and uninstalled before even completing the first objective.

World of Tanks

Extreme Paintbrawl series

Superman 64

Empire earth 3, Never again.

Guise of the Wolf

Hotel Giant 2

Hannah Montana: The Movie: The Game

Enclave! I won the game here on Steamgifts and after my first try of the game i deleted it. It has terrible graphics, the control is bad and the goal of every level is to collect as many bags as possible...