Stealth

Styx returns in a new stealth adventure! Explore and master huge open environments, sneak past or assassinate new enemies and bosses, and experiment with the new array of lethal abilities and weapons in our goblin assassin's arsenal.

Based on the successful television show, Alias lets players take on the role of Sydney Bristow, a stealth operative working for the CIA. The game sets the player against two of Bristow's enemies from the original series in a plot which takes her from Saudi Arabia to Rio de Janeiro as she aims to find out about a mysterious device known only as "The Machine". The game was devised in conjunction with the writers from the show and uses official costumes, character shots and voices.

Players control Solid Snake and Raiden as they help unfold another convoluted Metal Gear plot. Enemies are your friends and friends are your enemies. Typical Metal Gear stuff. This is a stealth-based game. If you are sloppy you will die. *Insert Solid Snake joke here.*

Shadow Tactics is a hardcore tactical stealth game set in Japan around the Edo period.

Dishonored 2 is set 15 years after the Lord Regent has been vanquished and the dreaded Rat Plague has passed into history. An otherworldly usurper has seized Empress Emily Kaldwin’s throne, leaving the fate of the Isles hanging in the balance. As Emily or Corvo, travel beyond the legendary streets of Dunwall to Karnaca, the once-dazzling coastal city that holds the keys to restoring Emily to power. Armed with the Mark of the Outsider and powerful new abilities, track down your enemies and take back what’s rightfully yours.

A stealth game developed by IO Interactive and published by Eidos Interactive. It is the third entry in the Hitman series, followed by Hitman: Blood Money.

The game features recreations of four levels from Hitman: Codename 47. The storyline intertwines between two missions in its sequel, Hitman: Blood Money. The game is considered to be the darkest and most violent game of the series, due to the overall dark and depressing tone throughout the game's missions.

In the game, players assume the role of an assassin known as Agent 47. The game advances as players carry out contract killings by solving puzzles to arrange for stealthy, untraceable assassinations.

Deus Ex: Mankind Divided is a cyberpunk-themed action role-playing stealth video game developed by Eidos Montreal and published by Square Enix. Set two years after Human Revolution, Mankind Divided features the return of Adam Jensen from the previous game, Deus Ex: Human Revolution, with new technology and body augmentations.
Quote: Wikipedia

The covert exploits of a Russian agent lead him to cross paths with a CIA operative between WW2 and the Cuban Missile Crisis... An engaging albeit dated stealth-action game that's basically Death To Spies 3 knocking publishing hardships out, changing clothes and emerging unconspicuous, against all odds.