Lament of Innocence tries to combine the unique exploration style of its own predecessors while introducing fast-paced hack 'n slash gameplay from contemporary titles like Devil May Cry. Unfortunately, it fails to do either very well.

The exploration is slow and stunted due to dull, repetitive areas; an unintuitive and often unhelpful fast-travel system; and slow, stiff character movement. These combine to make traversal (and backtracking, which you will do an excessive amount of if you wish to get any items or upgrades whatsoever) a chore. Additionally, Lament includes some of the most cryptic, unintuitive, and sometimes outright opaque progression in the entire series (yes, including Simon's Quest). Although much of it is not necessary for game completion, it will lock the vast majority of players out of the actually fun and interesting aspects of the game's combat altogether.

The combat, while not completely boring, is too simple and repetitive to remain interesting for the game's already stretched length of about 10 hours (more if you go for 100%). You start the game with almost no combos (a detriment to a game of its style), and even once you do progress enough to unlock more, you realize that only one or two out of the already extremely limited supply are actually worth performing consistently. The camera is fixed in each room, meaning that if it's in a bad angle, you have no choice but to try to move to another part of the room to see the action better. The Relic system is also laughably underdeveloped, having only 6 options to choose from in the entire game, 3 of which will ever be useful; of these 3, none are unlocked without copious amounts of backtracking and cryptic nonsense. The saving grace is the legitimately fun and interesting mixture of classic sub-weapons (Daggers, Axes, Holy Water, etc.) and Orb powers, which combine to grant Leon many exciting abilities. The system is almost exactly like that of Harmony of Dissonance, making it a welcome return from another troubled Castlevania title. Unfortunately, some of the best and most interesting of these are, once again, locked behind the game's poor exploration.

The music, while legitimately good, starts to grate on you once it has looped for the 100th time on a stage. For as long as you will spend in each individual area picking your way through the same enemies in each cookie cutter room, there is a distinct lack of different music for different floors, sub-areas, etc.

The story is a mess, pulled in two directions by its archetypal nature and its new series lore. The majority of Lament is an uninspired narrative consisting of a young knight, aided by an old mentor, on a quest to save his girlfriend from a vampire (notably, not Dracula). While almost nothing about Rinaldo the Alchemist and Walter the Vampire is particularly compelling, Leon makes for a simple but effective protagonist, and the twists (one of which is extremely obvious) actually make the game's narrative stand out from its peers a bit.

Overall, Lament of Innocence, whether due lack of care or (much more likely) budget and time constraints, is a half-baked entry in the Castlevania series, but it is still far from the worst.