Soulstone Survivors is far more than a “clone” of Vampire Survivors. The gameplay during a run is similar, but the variety of characters, the power of available pools, the breadth of passive boosts, the extensive per-character skill progression… all lead to a game that doesn’t deserve to be referred to as a “clone” of anything.
For $12.00 you can get the Mass Effect Legendary Edition, which is all three remastered games plus all their DLCs save one, which has been restored by the modding community.
At $9.99 you should also look at the Master Chief Collection of Halo, which gives you all the mainline games up to Reach (including the remasters of the first two) as well as the multiplayer for all of them.
And while the base game alone does fit your price limit, the Complete Edition of Witcher 3: Wild Hunt is only a little bit more but adds easily 50-60 hours of additional story content, never mind the extra armours and game mechanics.