The plot of main game, developed for PS3, Xbox 360, and PC, begins as
the Prince is riding through a desert on his horse, on a quest to see
his brother, Malik, and learn about leadership from him. When the Prince
arrives at Malik's kingdom, he finds it under attack by an army who he
proposes wants a treasure buried deep within. The Prince infiltrates
Malik's kingdom, and meets up with Malik in the treasure vaults.
Here, Malik proposes that he is fighting a losing battle, and needs
to rely on a last resort or be forced to retreat. The Prince strongly
objects, but Malik refuses to listen to him, and, releases Solomon's
Army using a magical seal. Solomon's Army is an assortment of different
creatures, all made of sand, supposedly enough to outnumber the grains
of sand in the desert. The Prince and Malik both manage to obtain halves
of the seal which was used to unleash the army, protecting them from
being turned into sand statues, which was the fate of the rest of the
kingdom. The seals also allow them to absorb the power of the enemies
they defeat.
Malik is separated from the Prince, who finds a portal to the domain
of Razia, a Djinn. Razia tells the Prince that the Solomon's army was
not Solomon's, but was an army sent to kill him. She tells him the only
way to re-imprison Solomon's Army is to reunite both halves of the seal
used to bind them. Razia gives the Prince special powers, and has him
set out to find Malik, and the other half of the seal. When the Prince
finds Malik, he isn't interested in stopping the Army of Solomon, but
instead wants to destroy it and use its power to become a more powerful
leader. The Prince finds Razia again, and asks her about this, and she
proposes it's an effect of absorbing too much of the power of Solomon's
Army, and that the power she gave the Prince offered him protection from
this effect.
The Prince again sets out to find Malik, this time to forcibly take
his half of the seal, but Malik is stronger and manages to escape.
Pursuing Malik again, the Prince finds Ratash, the leader of Solomon's
Army, pursuing anyone in possession of the seal. After the Prince
outruns him, he concludes Ratash must now be chasing Malik, and so sets
out to aid him. The Prince arrives in the throne room to find Malik and
Ratash fighting, and he aids Malik. The Prince and Malik seem to kill
Ratash, and Malik absorbs his power, shattering his half of the seal.
Malik then runs off, seemingly in a hysterical fit, using some of
Ratash's powers to escape.
The Prince pursues him, and again finds Razia instead. Razia explains
that Ratash cannot be killed by any ordinary sword, and that what
actually happened was quite different than what the Prince saw. Ratash
has actually killed Malik, and possessed his body. The Prince doesn't
believe this, and sets out to find the Djinn Sword, which Razia says can
kill Ratash.
Along the way, the Prince chases Ratash, witnessing Ratash gaining so
much power back, that he can mutate Malik's body back to his original
form. The Prince loses a battle to Ratash, and the Prince is convinced
that his brother is in fact dead now. Then when he meets Razia once
again, he starts questioning her intentions and asks her why she cares
for Malik's kingdom and why she did not kill Ratash herself. Razia says
she has "a part to play". She, then, eventually reveals that she was
once one of the four leaders of Djinns and did not leave the city as the
other Djinns had because she promised to King Solomon she would take
care of the his kingdom to the best of her ability. When Prince finds
the Djinn Sword, he takes it to Razia, who holds it in her hand and
disappears into it. When the startled Prince calls out her name, she
speaks to him from the sword and explains that to kill a Djinn the magic
of an other Djinn is reqiured and this is her "part to play". Then
Prince asks her what will happen to her after killing Ratash with the
sword, she answers, "We will see". With this sword, the Prince again
sets out to find Ratash. When he does, Ratash is now gigantic, literally
fed by the sandstorm which has come over the palace.
Despite this, the Prince uses the sword to kill Ratash, and when the
sandstorm and battle both subside, he finds Malik laying next to him,
dying. Malik says to tell their father that Prince will be a mighty
leader, then dies. There are also shots in the game, showing that the
people, who were turned into sand, are reverted back into their normal
selves. The Prince then sets out to inform his father of Malik's death.
In a post-credits narration, the Prince finds the Djinn sword and
calls Razia's name but to no answer, so he decides to return the sword
to where he found it, so to lay Razia to rest and as he could no longer
bear to hold the sword, and then with Malik's kingdom under Malik's
advisors' rule, the Prince leaves to inform his father of his brother's
death.