Humble Bundle's been on a bit of a winning streak for the past month. First there was the Image Comics collection that included three volumes of Saga and the first two volumes of Phonogram (even if you don't read comics, I can't recommend those two series enough). Then there was the Firaxis bundle that set you up with all the XCOM you could want ahead of XCOM 2's release. Now it's Ubisoft's turn and it's stepping up to the plate by offering Grow Home, Rayman: Origins, and Call of Juarez: Gunslinger for 69p. I've not played Gunslinger myself but Grow Home and Rayman are both excellent.
If you've a little more to spend then you can get Far Cry 3, Splinter Cell: Blacklist, and Assassin's Creed Chronicles: China by beating the current average price of £4.79. Not bad considering Chronicles alone is selling for £7.99 on Steam at the moment. If you do buy into that upper tier then you'll also get the other games Ubisoft adds to the bundle over the coming week.
For £10.32 then you can get all of the above games and The Crew and Assassin's Creed Rogue on top.
There's a fourth tier, too, which gets you a preorder for The Division, a T-shirt, and coupons for discounts on other Ubi games but that will set you back£51.61.
Personally, I'd opt for the $1 tier and wait to see what gets added to the 2nd tier. You can always up your payment later but if you've not played Grow Home and Rayman then you should dive into those as soon as you can because they're lovely,