For the first time ever, Tom Clancy-branded games are now a part of a Humble Bundle. Paying whatever you want gets you Rainbox Six, Rainbox Six 3, Rainbow Six Vegas, Splinter Cell: Chaos Theory, Ghost Recon, and access to the Rainbow Six Siege multiplayer beta on PC. Beating the average of about $7 gets you those games as well as Rainbow Six Vegas 2, Splinter Cell, Splinter Cell Conviction, as well as any bonus games in that tier.
Spending $10 or more gets you Splinter Cell Blacklist as well as Ghost Recon: Future Soldier. Parting with $75 gets you everything, including those games, a pre-order for Rainbow Six Siege on PC, a Siege T-shirt, and up to 66% off of anything in the Humble Store from Ubisoft (excluding pre-orders). The $10 tier is really a must since you get a slew of AAA-level gaming for next to nothing, and will future-proof your purchase in case another high-level game hits the BTA tier.