The link is here http://store.steampowered.com/app/671210/Get a sneak peek into how it all starts with the demo version of FINAL FANTASY XV WINDOWS EDITION.
*Spec may differ from the product version.
Take the journey, now in ultimate quality. Boasting a wealth of bonus content and supporting Native4K(3840×2160px) ultra high-resolution graphical options and HDR 10, you can now enjoy the beautiful and carefully-crafted experience of FINAL FANTASY XV like never before.
*The main difference to the product version is that sub-quests have been disabled.
The download size for the FINAL FANTASY XV WINDOWS EDITION PLAYABLE DEMO is 21GB. The High-Res 4K textures are included in this demo and are turned on or off automatically depending on your hardware specification.
In the final product, High-Res 4K textures will be an optional download and can be toggled on or off by the user.
Please visit here for more details on the recommended hardware needed to optimally use these textures.
The FINAL FANTASY XV WINDOWS EDITION PLAYABLE DEMO is a preview of the full game. We will continue to work on all aspects to ensure FFXV WINDOWS EDITION will be a great experience for PC gamers.
Game is also available on origin via "Try demo" button https://www.origin.com/pol/en-us/store/final-fantasy/final-fantasy-xv/standard-edition
Rumours say its also on windows store but i don't visit that place ever :F
I already played through whole demo, took me about hour/hour and half excluding crashing that ill talk about later. The demo offers large chunk of map and lets player explore a little of the world, there are two or few quests with most of them disabled for demo purpose. The demo generally ends after attempting to leave island and finding out about the fate of Insomnia. Not sure if its demo thing or not, but game will be full of spoilers for the Final Fantasy XV Kingsglaive movie so its recommended to watch it before starting game (or watching it right after you started game and got your car fixed as these things in movie happen in meantime).
We get to experience full fighting mechanics, from regular hand to hand combat, warping up to teamwork fighting. We get to give regalia a ride as well as we can use its auto-pilot mode. The bird riding tho is disabled for the demo :F
As for the crashing, its common issue (during first part of game), at first though its DX12/overlays but finally turning down all settings to minimum and then increasing after troublesome part fixed it. Second bug is audio breaking off in cutscenes and cinematics, its also known issue related to realtek audio cards (so pretty much majority of used in motherboards) and 2.0/2.1/5.1/7.1 audio configuration.
Game was run on GTX1080ti + i7-8700k on full max settings (VXAO is not avaliable in demo). The demo also contains 4k textures that are toggled on/off automatically. As for the controls, the menus are very keyboard oriented but once you get to game, fighting and moving around feels very smooth on mouse+kb combo.