Portal is a 3D action game for free, casual gamers. It's an FPS game where you must solve puzzles by opening and closing portals and using the objects around you to help you.

Opening and closing portals can be likened to shooting objects to create a portal or shooting them to deactivate them. Your creativity comes into play as you figure out how to manipulate things at each level by arranging them in a specific order or utilizing them strategically. It's all in your hands!

To unravel the mysteries of Aperture Science Corporation, you will need to master the art of opening and closing portals. Your problem-solving skills will be put to the test as you navigate through these challenges.

Original

Portal's big idea is the the 'handheld portal device', that allows subjects to open portals between two places. This means that instead of climbing a ladder for example, you can shoot a portal at the bottom, and another at the top, and simply walk through. It's makes more sense when you play! Check out the explanatory video here.

Graphics and gameplay

Portal looks good even though it was originally released in 2007, thanks to its clean, minimalist laboratory style. In game physics are absolutely perfect, and using the portals is great fun once you get the hang of it. It's such a great idea, you might find yourself wishing you could use them in real life too! The puzzles get pretty tough, but the learning curve makes sure you're ready for the challenges when the time comes.

The incredible thing about Portal is that is manages to be a compelling first person 3D adventure where your character never shoots a gun. There is a mystery behind who you are, what Aperture Science is and more, and it's fascinating to discover what's going on while you solve the puzzles. GLaDOS is one of the most iconic and effective 'baddies' you will meet in a video game too.

Portal with RTX — a free DLC

NVIDIA's Portal with RTX DLC is a game-changer for both current and future owners of this iconic title. This free DLC adds a remarkable layer of visual sophistication to the beloved Portal universe. Developed by the talented team at NVIDIA Lightspeed Studios, Portal with RTX takes a giant leap forward in terms of graphics, thanks to its full ray tracing support, high-resolution textures, and enhanced character models. 

These additions elevate the immersion factor and bring a newfound level of realism to the game's already captivating world. What's truly commendable is the flexibility it offers players. The ability to seamlessly toggle between the original Portal and the dazzling Portal with RTX, ensuring a tailored gaming experience.