I haven't gotten far into the first of two parts of the games, but so far I'd say it's your basic first-person shooting game with a fun Egyptian location treasure hunt. The original, older game was released in 2001 but the HD version I got is a huge step forward in terms of look and feel. It's very immersive; this is my first time touching the Serious Sam series as a whole so I don't know how the older version looked, but it certainly caught my attention. There's also co-op for up to 10-16 players, I think.
It's definitely toned down from Duke Nukem, that's for sure, lol. XD Duke throws around his usual pick-up lines and catchphrases, but this one's scaled back to deliver a nice roustabout in different places around Thebes. Serious Sam doesn't say a whole lot and is pretty much kept quiet.
https://www.youtube.com/watch?v=A6NL7fi96eQThe frogs, lol... hooo boy the frogs. XD