Portal is a puzzle-platform video game developed and published by Valve Corporation. It was released in a bundle package called The Orange Box for Microsoft Windows, Xbox 360 and PlayStation 3 in 2007. The game has since been ported to other systems, including OS X, Linux, and Android.
Portal consists primarily of a series of puzzles that must be solved by teleporting the player's character and simple objects using "the Aperture Science Handheld Portal Device", a device that can create inter-spatial portals between two flat planes. The player-character, Chell, is challenged and taunted by an artificial intelligence named GLaDOS (Genetic Lifeform and Disk Operating System) to complete each puzzle in the Aperture Science Enrichment Center using the portal gun with the promise of receiving cake when all the puzzles are completed. The game's unique physics allows kinetic energy to be retained through portals, requiring creative use of portals to maneuver through the test chambers. This gameplay element is based on a similar concept from the game Narbacular Drop; many of the team members from the DigiPen Institute of Technology who worked on Narbacular Drop were hired by Valve for the creation of Portal, making it a spiritual successor to the game.
Family Feud® 2
1010!
Summoners War
UNO ™ & Friends
Castle Clash: War Empire
Design Home
Words With Friends 2-Word Game
Hill Climb Racing 2
My Singing Monsters
Tiny Tower
Color by Number: Coloring Book
Racing in Car
Words With Friends Classic
Jurassic World™: The Game
2048
Twisty Road!
Evil Apples: Dirty as ____.
Racing Rivals
Block! Hexa Puzzle™
GTA 5
Sniper Shooter: Gun Shooting
Stupid Zombies
Hungry Shark Evolution
Boom Beach
Bowmasters - Multiplayer Game
Traffic Rider
Word Search Puzzles
Angry Birds Star Wars II
Granny
Geometry Dash Lite
DoubleDown Casino Slots & More
My Talking Tom
Deer Hunter 2018™
TENKYU
Panda Pop - Bubble Shooter
100 PICS Quiz
Hello Stars
Modern Combat 5
Bike Race: Motorcycle Racing
PinOut!
Can You Escape
Dumb Ways to Die 2: The Games
Where's My Water? Lite
⋆Solitaire
Faily Brakes
NBA LIVE Mobile Basketball
Roll the Ball® - slide puzzle
CSR Racing 2
Toy Blast
Jelly Jump
High School Story
Bakery Story
Dumb Ways to Die
Love Balls
Temple Run 2
Clash of Clans
Angry Birds Rio
Candy Crush Saga
Flip Diving
Lords Mobile: War Kingdom
Star Wars™: Galaxy of Heroes
DragonVale
Pet Rescue Saga
Super Mario Run
Angry Birds Go!
Stick Hero
Block Craft 3D: City Building
8 Ball Pool™
Chess ∙
AdVenture Capitalist
Extreme Car Driving Simulator
Fortnite
Soccer Stars™
Glow Hockey 2L
Injustice: Gods Among Us
SongPop
The Sims™ FreePlay
Pop the Lock
Geometry Dash Meltdown
Hay Day
Tiny Wings
Disney Crossy Road
Trivia Crack
My Boo Virtual Pet & Mini Game
Word Link - Word Puzzle Game
Heads Up!
Twisty Arrow!
Minion Rush
Snake VS Block
▻Sudoku
Criminal Case
Dancing Line
Asphalt 8: Airborne
SimCity BuildIt
GTA v
Dragon City Mobile
The Simpsons™: Tapped Out
Hungry Shark World
Wheel of Fortune: Show Puzzles
Slotomania™ Vegas Casino Slots
Slices
myVEGAS Slots – Casino Slots
MORTAL KOMBAT X
Asphalt 9: Legends
Trigger Fist
Puzzledom
Doodle Jump - Insanely Good!
Fashion Story™
Sonic Dash
Guess The Emoji
Sniper 3D Assassin: FPS Battle
Baseball Boy!
Disney Emoji Blitz
Best Fiends - Puzzle Adventure
Smash Hit
Draw Something Classic
Coin Dozer
Highway Rider
HQ - Live Trivia Game Show
PUBG MOBILE
Rules of Survival
Beat the Boss 2
Clumsy Ninja
Magic Jigsaw Puzzles
Solitaire·
Hill Climb Racing
My Talking Angela
Run Around 웃
Pixel Gun 3D: Battle Royale
Homescapes
Bejeweled Blitz
Six!
Traffic Racer
MARVEL Contest of Champions
Toilet Time - Mini Games
Archery King
LEGO® Star Wars™: TCS
Bloons TD Battles
Cooking Fever
Twist
Gardenscapes
Zynga Poker - Texas Holdem
slither.io
War Robots
PAC-MAN
Unblock Me
World Series of Poker - WSOP
Kids Doodle - Movie Kids Color & Draw
Sky Burger - Build & Match Food Free
Hole.io
Spider Solitaire: Card Game
Angry Birds 2
Stack Jump
Piano Tiles ™
Charades!™
Tic Tac Toe ∙
Dune!
Paper Toss
ROBLOX
Happy Wheels
aa
Word Cookies!™
FIFA Soccer
Real Racing 3
Looper!
Candy Crush Soda Saga
Zombie Frontier 3: Sniper FPS
Temple Run
Wordscapes
Toon Blast
Township
Fruit Ninja Classic
Paper.io
Farm Heroes Saga
MADDEN NFL Football
Deer Hunter Classic
Kim Kardashian: Hollywood
Fruit Ninja®
Racing Penguin: Slide and Fly!
TETRIS®
Piano Tiles 2™
Pokémon GO
Hearthstone
The Impossible Test - Fun Free Trivia Game
Walking Dead: The Game
Hello Neighbor
Episode - Choose Your Story
QuizUp™
Kick the Buddy
Big Fish Casino: Slots & Games
Crossy Road
Monster Legends
Doodle Jump
Choices: Stories You Play
Plants vs. Zombies™ 2
Subway Surfers
Need for Speed No Limits
Clash Royale
Rolly Vortex
Golf Clash
ZigZag
Rise Up
Campus Life™: Fashion Girl
PLANK!
Cookie Jam Matching Game
Jigsaw Puzzle
Word Connect ¤
Basketball Stars™
Word Crossy - A crossword game
Rolling Sky
Stack
Solitaire
Jetpack Joyride
Helix Jump
Deal or No Deal
Tetris® Blitz
CSR Racing
Fit the Fat 2
Flow Free
Talking Tom Gold Run
Smashy Road: Wanted
Fallout Shelter
Pet Shop Story™
Texas Holdem Poker: Pokerist
Pictoword: Fun New Word Games
Covet Fashion
4 Pics 1 Word
Ballz
Color Road!
Final Fantasy XV: A New Empire
The Sims™ Mobile
Words With Friends – Word Game
PAC-MAN 256 - Endless Arcade Maze
My Horse
Candy Crush Jelly Saga
Two Dots
Agar.io
What's the Difference? Spot It
Turbo Dismount®
Home Design Story
Where's My Water? 2
Minecraft
Portal was acclaimed as one of the most original games of 2007, despite criticisms of its short duration and limited story. The game received praise for its originality, unique gameplay and dark story with a humorous series of dialogue. GLaDOS, voiced by Ellen McLain in the English-language version, received acclaim for her unique characterization, and the end credits song "Still Alive", written by Jonathan Coulton for the game, was acclaimed for its original composition and humorous twist. Excluding Steam download sales, over four million copies of the game have been sold since its release, spawning official merchandise from Valve including plush Companion Cubes, as well as fan recreations of the cake and portal gun, a standalone version, titled Portal: Still Alive, on the Xbox Live Arcade service in October 2008, which added an additional 14 puzzles to the gameplay, and a sequel, Portal 2, which was released in 2011, adding several new gameplay mechanics and a cooperative multiplayer mode.
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!