If you are looking for a billion gallons of blood and a zillion tons of gore and guts, don't look any further, DOOM 2016 will fill your need. A huge amount of fun, great weapons, horrible monsters (including some human ones ^^)... Will keep you busy around 15-20 hours. I am putting 4/5 as sometimes I got lost and wish the map was better and provided actual directions. Don't play this if you are looking for a quiet, relaxing game. Play it if you want to massacre boatloads of monsters.
I had read about the Anno series for years as I was reading about new video games for years and always thought I would give it a try. With some GOG sales I finally bit the bullet and bought Anno 1404. Long story short, I had a blast doing the Elector scenario. It took me hours to just reach the final part of victory, having 2,000 noblemen. But I finally made it. I dont know if there is a mode that explains you how to play but the scenario just dropped me with very little explanation and I had to google time and again specialized forum and websites to understand how to progress. But I imagine this is explained in another mode / part of the game. I liked this game as it is really cute and fun to play. You just do not see time fly by. The difficulty is present but not overwhelming. The various things you have to build / cultivate / buy kinda make sense. The gameplay is definitively there. The graphics are really nice done. Now, the bad parts: the music is quite repetitive. the sound samples spoken by characters are always the same. On my 2015 laptop with 8 Gb of RAM, an SSD and a dedicated graphics card, the game was taking FOREVER to start. I don't want to imagine how slow it must have been with a 2009 average computer. Overall, I had fun. I dont know if I will play other modes or scenarii but so far I give Anno 1404 a solid 4/5.