Gameplay
Dungeon exploration plays more like a platform game than a traditional RPG, with Lenneth Valkyrie the only visible character and capable of jumping, sliding, swinging her sword, and shooting ice crystals. Ice crystals can make temporary steps and freeze enemies and are used for solving many puzzles. Upon contact with an unfrozen enemy, an RPG-style battle begins. Enemies are visible and attacking them gives Lenneth a first attack advantage in combat. Lenneth can also engage an enemy in battle by coming into contact with them; in this case, there is a 50% chance that the enemy will have the first attack.
Travel on the world map occurs in a 3D third-person perspective, with Lenneth flying in the skies over Midgard. Pressing the Start button allows her to perform a "Spiritual Concentration", which reveals new dungeons, cities and towns, and recruitable einherjar, the souls of deceased warriors. When entering a city or town, the game switches to a 2D profile view and Lenneth will disguise herself as a human, allowing her to interact with inhabitants without drawing attention to herself.
Much of the game consists of Lenneth locating and recruiting new einherjar (with cut-scenes of the circumstances of their deaths), training them, and determining if and when to send them to Valhalla to fight alongside the Æsir. Character development for most of einherjar consists of their "death scenes", which are often dramatic and highly emotional and often steeped in symbolism and metaphors, and dialogue between them and the Gods while in Valhalla. Each chapter requires Lenneth to send at least one einherjar to Valhalla (with a maximum of two per chapter), preferably meeting a set of requirements outlined at the start of the chapter. This makes the einherjar that is sent unable to be selected again until the endgame (if they prove strong enough to survive), but the game compensates with a large cast of 21 einherjar (some of which are exclusive to Normal or even Hard difficulty).
The game is divided into eight chapters, each with different quests, dungeons, and items available. Each chapter is further divided into periods, depending on the difficulty (16 in Easy, 24 in Normal, and 28 in Hard). Visiting towns, dungeons, and recruiting einherjar use up periods, requiring that the player budget their available time. Once the periods in a chapter are up, the Sacred Phase begins, in which Lenneth returns to Asgard and Freya updates her on the status of the war with the Vanir and the fate of her einherjar in Valhalla.
Each Einherjar has a Hero Value, a number representing their combat strength and strength of character, and Lenneth must send einherjar with the proper hero values and skills to survive in Valhalla and keep Odin and Freya satisfied. Not sending Einherjar and opting to keep too many special artifacts awarded at the end of dungeons will lower Lenneth's Evaluation to 0, which triggers the worst possible ending (Ending C). Conversely, offering artifacts instead of keeping them and sending Einherjar that meet or exceed the chapter's requirements awards a number of bonuses. First, it tilts the divine war in the Æsir's favor and increases Lenneth's Evaluation. Second, to increases the number of Materialize Points that Freya grants during the Sacred Phase, which are analogous to money, as they can be transmutated into items and equipment and vice versa. Finally, it earns powerful artifacts from Odin.
It also has a group experience system: battle experience is divided among the active party members, but experience points obtained from dungeon exploration (Event EXP) such as solving puzzles and completing dungeons are banked for division among party members at the player's discretion. There are three difficulty levels: Easy, Normal, and Hard, with different available einherjar, dungeons, quests and mechanics. On Easy and Normal difficulty, the starting levels of einherjar vary, while on Hard difficulty, all characters start from Level 1. To compensate, there are more dungeons available and consequently more objectives that award Event EXP.
There are also three different endings. The "B" and "C" endings can be achieved in any difficulty level, while the "A" ending, which completes the entire story, is only available with the completion of certain tasks in the normal and hard difficulties. Also, the Seraphic Gate is only fully accessible in Hard.
Combat
Valkyrie Profile has a unique turn-based battle system. The two sides wage battle during alternate turns, with the whole party sharing one turn and able to attack simultaneously during that turn. Each enemy is given their own turn and do not combine attacks with one another. Each of the party members is assigned to one of the buttons on the controller (Square, Triangle, Circle, or Cross). Pressing the corresponding button on the player's turn orders that character to attack. Fighters have three character-specific attacks each turn, though weapons can limit how many they can use. Mages cast their preset offensive spells, which builds up their CT (Charge Time). Charge Time replaces MP, decreases slowly on its own, and prevents casting spells when above 0. While a mage's CT decreases, they cannot perform any actions, though there are skills that allow exceptions to this.
Stringing attacks together produces combos that prevent a target from defending or recovering, yield Magic Crystals and Fire Gems that increase experience and reduce CT, and add to the Hit Gauge. When the Hit Gauge reaches 100% in one turn, a character that participated in the combo that filled the Hit Gauge may perform a special attack ("Purify Weird Soul") that causes great damage and refills the Hit Gauge, possibly allowing another character to use their Purify Weird Soul. Using a Purify Weird Soul causes CT to rise, so characters must wait several turns before they can perform another one. Fighters have unique Purify Weird Souls. Mages use either multi-hit versions of their selected spells or Great Magic, elaborate versions of their selected spells that strike all enemies. Only certain scepters allow the use of Great Magic; human-forged Great Magic-capable scepters have a high chance of breaking with such use, and unbreakable ether-coated ones are extremely rare. Damage is not capped so the party may attack an enemy until they no longer have any available moves rather than being limited to the total HP (health points) of the target.
At the beginning of each battle, Lenneth summons her einherjar to combat.
