This is a pretty solid mod of Check Back, so much so that the original game directly links to it. This starts off with a faster pace, and more layers of gameplay unlock. However, at about a month in, it's felt like I'm not making any progress for quite awhile. My biggest gripe is that there's essentially a lootbox mechanic in which you periodically get a random pet, large sets of which are needed to trade in for various upgrades. At least for me, the RNG has been pretty stingy with pets I can actually use on upgrades. I really do not think this kind of mechanic is a good fit for an idle game. The design of this game is meant to be a periodic check-in, not active gameplay, and it's definitely an improvement over the original, but I doubt many will get to end of game content. Still worth a spin as the best variant on the Check Back model though.