ASTLIBRA Revision

Some reviews of ASTLIBRA Revision spend more time on who made it than what it plays like, and that's not a knock on the reviewers. One of the most-upvoted positive reviews (175 votes) opens with a section titled "Proof of Life" and spends its whole length on the fact that this is the work of one Japanese developer, KEIZO, over roughly fourteen to fifteen years. That context is genuinely load-bearing here: it explains both the game's enormous, slightly ramshackle scope and the patience its harshest critics extend to it even when they're not recommending it.

A huge action RPG built by one person

Structurally, this is a 2D side-scrolling action RPG with real Metroidvania-adjacent exploration, built around weapon skills, crafting and an equipment system reviewers describe as deep enough to sustain 70 to 200-plus hours. Even the most detailed negative reviews concede the moment-to-moment combat works: "Combat's got that addictive mix of simple yet satisfying," reads one 57-vote critical review. "Weapon skills are especially fun to grind out and the merching/crafting system adds a lot of playtime to the areas without making it feel like a pointless level grind." The soundtrack draws essentially universal praise regardless of a review's overall verdict — one positive review calls it "an insane soundtrack, allegedly comprised of quite a few freeware songs," and multiple others name it as a genre highlight on its own.

The screenshots make the game's biggest strength and its biggest liability visible in the same frame. Boss encounters unfold across layered floating-island backdrops with real visual ambition, but the same scenes stack numbers, particle bursts and enemy silhouettes on top of each other until the actual combat information gets hard to parse — exactly the complaint a chunk of the negative corpus raises directly, describing "animations that cover the screen and enemies so you can't see where you are or what's happening" in the busiest fights.

Where the negative reviews actually agree

Reading the 100 most-helpful English negative reviews in full — median playtime just under 22 hours, meaning these are considered verdicts rather than drive-bys — two complaints dominate. Writing and dialogue come up in 19 of the 100, and the specifics are consistent: "It's basically a really bad anime," reads one, "very badly written throughout, filled with empty platitudes, excessively horny." A 2024 review goes further, describing the tone as veering into "heavy incest overtones" it found genuinely uncomfortable rather than merely juvenile. This isn't a fringe complaint from a handful of outliers — it recurs across reviews written a year and more apart, from players who otherwise liked substantial portions of the game.

The second, larger complaint is difficulty and grind, raised in 30 of the 100 negatives, and it's specifically located: the back half of the game. "After chapter 5 and beyond the grindwall is killing any enjoyment," reads one. "Normal mobs can kill you in two shots, bosses are huge health sponges that the game keeps spamming one after another." Another negative review, written after finishing the whole game, calls the late-chapter difficulty spike enough on its own to "completely ruin the enjoyment of an already mediocre experience." Translation quality is a smaller but real thread too — nine of the 100 raise it, and notably some of the most positive reviews independently recommend playing in Japanese or Chinese if that's an option for exactly this reason.

What the achievement curve suggests

With 99 achievements tracked, the completion curve runs from the high 70s down into single digits at the far end — a shape consistent with a long, demanding RPG that a real share of buyers see a long way into, with a genuine completionist tail that thins out fast. That lines up with the review corpus's own median playtimes on both sides: this isn't a game people bounce off in an hour, on either side of the score.

8 out of 10. ASTLIBRA Revision earns its Overwhelmingly Positive badge honestly — the combat, progression and music are genuinely excellent, and the scope of a fifteen-year solo project is rare enough to be worth experiencing on that basis alone. But its writing is a real and recurring problem rather than a matter of taste, and its difficulty curve turns openly punishing in the back half in a way that several thoughtful, deeply-invested critics say tips the whole experience negative by the end. Go in for the combat and the music, brace for the dialogue, and don't be surprised if chapter five onward feels like a different, harder game.