

Kicking things off -
The Last Guardian - 9/10
Turns out it's pretty great.
It's a simple set up - a kid wakes up next to a Trico, a giant dog-bird-creature, and they have to work together to escape the temple/prison they've been trapped in. As the boy, you have to guide/feed/heal Trico, pull switches to open doors and move obstacles Trico can't while the AI Trico does all the heavy lifting (combat, big jumps, etc). It's pretty straightforward, but the way you're encouraged to build a relationship with Trico (gradually figuring out that you should stroke him after a fight, or unlocking actual commands around halfway through) and the expressiveness of both characters make it much, much more than the sum of it's parts. Trico made me feel things, man. Precious fucking cinnamon roll.
Still, it's an acquired taste. If you like Ueda's previous games (Ico and Shadow of the Colossus) then you should love this as it shares a lot of their DNA while being it's own unique experience, otherwise I'd be a bit wary. It's not without it's niggles - the camera can be a bit wonky and the controls aren't as intuitive as most modern games - and I imagine that might put people off quite quickly. But if you look past that, throw yourself in (I turned off all notifications while I was playing) and just relax and take time with it it's a hugely rewarding experience. Plus you'll feel things.
Edit:
Doom - 10/10
I throw out quite a few 10s so feel the need to clarify them - a 10, for me, is the best example of it's genre, technically flawless (with regards to bugs, FPS etc) and basically a must-play. Doom is that. Ridiculously fast-paced, fantastic level design, challenging and punishing without ever being frustrating and just really, really fun.
It's obvious how much thought has gone into it, too. For example the way everything - weapon upgrades, armour mods, rune challenges etc - is geared towards "now you can shoot stuff more better" is just excellent. In so many games collectibles are something you get for the sake of it, but in Doom it's something that actively improves the experience. It's so simple and streamlined it makes me wonder why so many developers (hello, Ubisoft) haven't figured it out before.
Hands down the best single-player shooter I've played.