Not a seasoned 4X player and have only played for a few days, so I will not comment too much on gameplay. Naturally, I take no responsibility for my comments.

Please do not start flame wars.

Graphics and Music

First and foremost are graphics and music, which are a game’s first impression. Endless definitely outperforms Paradox in this regard, whether it comes to illustrations, models or art design. Since Endless only has a handful of fixed factions, each single race gets extensive depictions, making them more vivid and more like actual “aliens”. Meanwhile Stellaris’s portraits are basically just the animal kingdom launched into space.

Lore, Races & Personalities

Lore and backstory are mostly left for your imagination. And this brings us to a key point for both games: races and personalities.

Each has its merits. Endless’s major races each have distinct traits and vastly different gameplay, yet you are limited to these few races. Even custom factions are just old wine in new bottles. Stellaris, by contrast, offers high freedom, yet gameplay differences are minimal. Without strong illustrations or lore to make up for it, you end up feeling every playthrough is churned out from the same mould. That said, in the hands of creative‑minded players, you can whip up a full‑blown space opera in no time.

Victory Conditions

As for victory conditions: Endless has six, Stellaris has three. Things like economic, scientific or wonder victories? Stellaris is still living in a dream world. But tell me, do any of you play Stellaris aiming for victory? Isn’t it all about messing with AIs, end‑game crises, and even your own pops?

Gameplay Mode: Turn‑based vs Real‑time

Endless uses traditional turn‑based 4X gameplay, similar to Civilization. Stellaris uses seamless real‑time. While this does not heavily affect actual gameplay, Stellaris clearly delivers a much smoother experience, giving you that sense of successive generations unfolding.

Game Content & Accessibility

Now onto game content and accessibility. This is where Endless’s flaws show up. First, the tech tree. Endless’s techs sound fancy, wildly imaginative and incomprehensible, yet if you look closely most tech names have barely anything to do with their actual effects. I suspect the people writing tech descriptions eventually could not understand their own writing, so they just shuffled and randomly combined everything. Players probably would not read them anyway, job done.

What they did not anticipate is how unfriendly this is to new players. As a beginner, especially on your first playthrough, you cannot parse tech effects, so you pick based on names and gut feeling. Your tech progression becomes a mess, and you get crushed by the AI. Luckily I picked the Sophon Wise Men, with absurdly fast research speed, which made up for my random tech picks. Stellaris has fewer options and is sometimes subject to RNG, yet its techs are far more down‑to‑earth and practical.

Steep learning curve and weird AI behaviour lead new Endless players to spend hours wondering: Where am I? What am I supposed to do? Why is he attacking me? How do I beat him?

Your science ship sets out exploring, blunders straight into someone’s home system, and gets wiped out without a declaration of war. Even once you slowly learn the ropes, fixed routines, fixed opponents and tedious operations will gradually wear down your interest.

Enjoyment & Replay Value

Speaking of enjoyment and replay value: late‑game fun in Stellaris entirely comes from all sorts of reckless shenanigans and trolling the endless supply of AIs. Endless, despite its name Endless, only derives its fun from its stylistically varied faction events and playstyles, with less randomness compared to Stellaris.

Warfare and Combat

As for warfare and combat… ugh, both are pretty bad, let’s leave it at that. Endless has gorgeous ship designs, yet actual battles only involve a handful of vessels, feeling like child’s play, with zero sense of grand interstellar war. Then there is Stellaris’s terrible war‑score system and planet occupation mechanics…

Bugs

Finally we have to mention bugs. Both games are pretty much on equal footing in this department.

Though Paradox seems a bit lazier?

Conclusion

To sum up: both games have their strengths, and different players have different preferences. Do not get fooled by clickbait titles. There is no absolute better one. Play what you like; nobody can tell you what to enjoy, right?

I wonder what folks over at the Stellaris subreddit would think of this.