Wildfrost is a fantastic game through and through!
It's a charming, challenging, deep and diversified rogue-like deck-building game.
The rules can be customised for harder runs, there is quite a lot of meta-progression, collectables and mechanics: you won't run out of content right away... And I haven't even looked yet at the community mods!
An indisputable gem that I would wholeheartedly recommend.

Quite sweet!

Pretty fun stuff!
Would be nice to have more keyboard controls or even mouse ones that don't require so much drag-and-drop.

Absolutely marvellous game!

Looks gorgeous, performs poorly.
Actually works.

(that's all the pros — including the performance: it's only poor, not downright horrendous, and I'll list that as a pro 'cause I'm generous in my assessment, I do want that game to become what it could be.)

HOWEVER

- Overly simplistic at times (faith? pollution?).

- In-game encyclopaedia is wonkily engineered:
Takes ages to load (a workaround is to open it, wait a short while, close it, reopen it), and is sluggish to scroll through.
For instance, search for Copper Mine, it'll find the entry, click on it to read more about it (perhaps the bonuses it gives to nearby districts?), and it'll just redirect you to the full list of all infrastructures in the game for you to wade through without a search/filter/sort functionality.

- Bugs are commonplace:
For instance, hover a Natural Wonder that's right next to your Outpost and find out that this wonder is now named "Exploitation" rather than its vernacular "Mount Roraima".

Sign a treaty, get notified that a treaty was signed;
look at your nearest allied empire's trading routes and find out that all along, it's been having international trading routes with ITSELF rather than you (from the tooltip);
Some Emblematic Quarters are not buildable in every territory attached to your city, despite the terrain meeting requirements and all (it's not that I've misunderstood the mechanics, I'm not the only one having noticed that, most notably with several Emblematic Harbour-like districts, now that I think of it...
Some turns won't end, some battles won't end.

Some mechanics are poorly explained;
You can't find out in-game which unit your current ones may upgrade into, nor whether they ever will be getting an upgrade...

The game uses broken English, like... the AI being "hate filled", which is nonsense –literally, in the way that it is devoid of any sense or meaning, isn't even a word, let alone an adjective... without its necessary hyphen. I presume they meant "hate-filled", but I wish they did more than mean it and had also typed it.
I understand that people don't comprehend the most basic principles of linguistics, but that is precisely why you should have, rather than a person, an actual linguist (or a literate individual) proofread the content you publish and broadcast, at least as a company, at least when you're waging your reputation on that piece of work.
Or, you know, simply notice the wavy red underline that undoubtedly accompanied that disgrace (and other) in whatever text editing software you were using. For instance, just Google "hate filled" and be gently yet obviously pointed out to that you must have meant "hate-filled".

Also,

- you can't place pins to plan your empire,
- the notifications widget is animating slowly, choppily, and is cumbersome to navigate,
- the unpolished Fame icon is reminiscent of a 25-year-old asset made for Nintendo 64, when cartridges were de rigueur and file size was the most limiting factor to creativity (I'm not even kidding, it's a less-refined variation of the Royal Crest from the Legend of Zelda series!),,
- your armies are unable to navigate the sea in a reasonable manner:
- embarked land units actually will knowingly plan a route that WILL DESTROY THEM if you just order them back onto your capital, where they came from, after manually having guided them through a patch of ocean,
- naval units will spend turns hopping in and out of coastal waters, trembling in fear of the unknown which they tirelessly albeit pusillanimously careen into,

and, and, and...
😩
*sighs*

And there's no news hub that lets us know anybody at Amplitude intends to ever do anything about any of the points above (besides the game-breaking bugs, the likes of when the entire thing comes to a halt when you can't complete a peace treaty).

BUT

- FIMS maths checks out
- Production/science overflow is actually working as intended
- Combat is tactical (although the combat area is, in my opinion, maybe too small in some instances).
- The AI is capable
- The game performs well
- The art is absolutely gorgeous (besides the FIMS icons, some of which are outrageous – looking at you, production cogs)

... which makes it vastly superior to Civilization VI,
which never actually calculated its "FIMS" right (I'm looking at you, Tourism...),
whose production/science overflow is a blithering mess,
whose combat is largely worse, not only in principle, but most glaringly for their ludicrously incompetent "AI",
whose performance is horrendous,
whose art is mostly right, but quickly thrown together in some places (like how Indonesia's Civ icon is pixelated and misaligned – along with most leader portraits.

THEREFORE

All in all, since it evidently can't help but be compared to Civilization VI, it is a stunningly better game at its core.
Still lacks YEARS of polish for a team of dedicated individuals, or a mere few months for the same team, assisted with a QA squad, or for the same team having been sensibilised to testing practices at a one-week seminar.

Can't recommend it in its current state, which is an utter shame, for its core is definitely miles ahead of its contemporary alternatives in the genre.

I however do believe that the Amplitude team will address some of these issues for additional donations in the near future.
I don't believe they'll ever fix the illegible/infuriatingly impossible Industry and Science FIMS icons nor the senseless, horrid 3d views for the different districts in the construction panel, or that already infamous Fame icon.

I don't believe they are actually ever gonna fix all the textual bugs. I'd only possibly be able to reasonably recommend this strategy game to people that aren't strategists, and you'd rather be at most semi-literate to be able to keep your head cool while perusing the interface.

TL;DR:
Bugs all over the place. Broken text that, when not missing, is evidently either placeholder or submitted by an illiterate, uninterested party.

---

UPDATE late 2025:

Things are overall better, though none of the specific points above were addressed. I suppose I just warmed up to it some more, the balance and pacing was adjusted somewhat. Sadly, I find the abysmal performance irredeemable—but I suppose it's only marginally worse than what we come to expect from the average "triple-A" drivel nowadays.

Quite riveting!
I regret that the numerous in-game achievements aren't actual Steam Achievements :(

Runs on **any** computer — even mine, which actually has **no** graphics card at all.

Great game, great performance, but zero replayability.

Also, early backers through preorders are barred from any promotional discount ever, 'cause Ubisoft decided to shun their Steam playerbase in a deal with Epic.

- very few achievements, and those that exist are meaningless (and no Steam achievements);
- no meta-progression (unlike all the stuff you had in 2070 with your Ark and the different factions, and in 1404 with all the unlockables and medals);
- zero scenario (apart from the campaign, which is rather short)

A few bugs, but really nothing compared to what most game studios lowered their standards to.
My biggest regret is the Ubisoft-ification of it all: BlueByte unfortunately associated with the single worst game producer in history.

Cool music. Horrendous controls.

This game is crippled with:

• HORRENDOUS performance,
  
• a plethora of bugs (they introduce new bugs as they fix some: for instance, they recently made it so that a unit with special bonus (e.g.: experience bonus) wouldn't lose these bonuses when the unit gets upgraded. Well... they also inadvertently bugged every single building that would provide such bonuses! Won't be fixed for the next 5 months — that's their officially stand, publicly stated,
  
• a plethora of bugs, still (nowhere does Tourism add up, when you compare the value in the lenses to the one displayed... I have written extensive documents covering this on civfanatics),
  
• Some values and data aren't updated 'till the next turn, or "something else" happens. For instance, re-assigning your citizens to working different tiles does NOT even update the yields for that city!! It doesn't recalculate the number of turns to finish your production, the population growth, or anything,
  
• Things that aren't really thoroughly built (e.g.: the AI is dumb; there's no replay feature...),