Dig Deep

Casual, basic game that's very similar to the mobile and YouTube Playables versions. Dig hole, collect balls to sell, make money, unlock the next island, repeat. This game features DLCs that provide pets with better benefits, but completing all achievements can be done without them. Although this version has the same gameplay regardless of platform, I did notice some differences here compared to the mobile and YouTube Playables versions: Steam version has only 12 islands, while Playables has 16 (I'm not sure how many the mobile version has, but I'm guessing it's at least 16). Steam version has purchasable temporary boosts that restock after 1 in-game day, while other versions have the boosts appear randomly while digging. Steam version has pets that must be purchased to obtain, while other versions allow you to obtain a free pet every ~8 minutes. To sell balls in the Steam version you simply stand near the buyer, while in other versions you stand near a loader who places balls into a minecart which can be upgraded (increase capacity, speed, respawn time, etc.) The general meta is: buy diggers, buy the temporary boosts, dig, build the monument, unlock the next island. The achievements are not difficult and only require patience. The endgame (last few achievements) rely heavily on diamonds, which are slow to collect - I recommend only buying the first 3 diggers once you reach island 4 to save up on diamonds, otherwise the endgame will be much more grindy. Full completion can be done in about 8-10 hours total. This game is an inexpensive time waster and if you enjoy the simplicity of the core gameplay loop and the satisfaction of consistent progression, then it's worth it. You can try out a free version either on mobile or YouTube if you're unsure about buying this, but then again this game's only $5 USD at full price so you won't be breaking the bank.