It's incredibly good. I know the phrase "better than it has any right to be" is over-used, but in this case I believe it applies. It's a survival crafting game made by Obsidian Entertainment. Yes, it's the same team that made Fallout: New Vegas. Though not perfect, it excels in ambience and design. You really feel like you're in a sequel to "Honey I Shrunk the Kids". It has decent progression, a pretty damn good story, and combat mechanics that hit that "tough but fair" vibe juuuuust right. Unfortunately, the characters can be a little annoying and it's only up to four players. These are my only main gripes as it checks all the right boxes for a survival crafting game in my book:
Combat is fun
Exploring is fun
Base-building is fun
I legitimately enjoyed my time in Grounded more than Valheim. I also tried a similar game called Smalland and couldn't get over the janky combat. If you like survival crafting games, don't miss this one. Oh and there's a slider that turns down the fidelity on spiders so you can play it even if you have arachnophobia. You might still have nightmares of wolf spiders though.