Ok, name ten games that don't end. And you can't name Bethesda games OR Dragon Age
Since you didn't put any other restrictions on the list of ten games, here we go:
1. Final Fantasy... XII (but really, go ahead and pick one). Ends.
2. Baldur's Gate 2: Throne of Bhaal. Ends.
3. Bioshock 2. Ends.
4. Neverwinter Nights: Hordes of the Underdark. Ends.
5. Civilization III. Ends.
6. Dragon Warrior. Ends. That's right, I went back to NES days. Whatcha gonna do about it?
7. Vampire: the Masquerade - Bloodlines. Ends.
8. God of War 2. Ends.
9. Metal Gear Solid: Snake Eater. Ends.
10. Shadowrun. Ends. I'm talking about the old Sega version, though the SNES one is equally qualified.
Let me go through the entire library of NES, SNES, Sega, N64, GC, PC, PS, and PS2 games and I can get you a list of hundreds of games that END. They're all over the place.
And we could also get into the idiosyncrasies of games like Final Fantasy XIII which do allow you to play after the final boss, but only by sending you back to a previous save with cap increases. That doesn't really count as "continuing" past the end because you simply aren't continuing past the end. Once FF XIII ends, the story is over. You can't play in the world without Orphan. IMO, that qualifies FF XIII for the List of 10.
Hitman Blood Money. Ends. Sure, you can go back and replay missions, but isn't that the same as reloading a save from before the end game? Let me answer that for you: yes, it's the same. Add it to the list of games that END.
Starcraft. Add-ons do continue the story, but in reality, once you're done with the main story? Game over, man! Game over! Our happy list just grew by 1.
Dragon Age should not be excluded from the list. Why? Because unless you get DLC, you are going NOWHERE. Where you goin'? NOWHERE. You get stuck in Camp. Imagine the outrage if, in New Vegas, you beat the boss and then got stuck in, say, Novak - surrounded by invisible walls. Thanks for comin' out. Despite your little rule about not including Dragon Age, the list just grew by 1.
Fallout 3. Ended. Ignoring this game makes about as much sense as ignoring any other game that ends. If you don't get the DLC, Fallout 3 is OVER for you, dude. Without Broken Steel, Fallout 3 makes it onto the List of Games That End.
Really, the list goes on and on. It's probably easier to make a list of sandbox games in which, by default, with the core game, you can continue on after completing the main quest.