Savage Moon is a tower defense strategy game that pits the player (humans), who is trying to mine valuable minerals from sentient asteroids or Imoons, against massive chitinous, armoured bugs called ‘Insectocytes’. As the humans burrow into the ground, the Imoon produces its own auto-immune response in much the same way that the human body produces white-blood cells in response to an infection; this is when the killing starts!

We have seen the humans encounter the Insectocytes before on the PS3. There has been two explosive campaigns set in deep space in the Shathak sector (the original game) and the Waldgeist nebula (the expansion pack). What we discovered is that the enemy evolves in response to attack – what does not kill them, makes them stronger! They grow resilient and mutate into diverse new forms with each mission and Imoon contested.

The next step is to colonise the PSP with Savage Moon: The Hera Campaign, named with reference to the Aegophagus: the goat eating aspect of the Greek goddess. This huge gathering of Imoons, the Hera Cluster, drifted into human space a few months ago. Preliminary intelligence suggests that it consists of 20 Imoons populated by a rich variety of Insectocyte forms, some of which have been encountered before and some of which are new. An example of a new form is the Drainer – evolved in response to our rapidly advancing military capability, this Insectocyte emits a bio-magnetic pulse-field that temporarily incapacitates any human technology within its range – rendering it vulnerable to rapacious Tank or Stinger Insectocytes. Other forms encountered include the regenerator sub-species that heals any damage it has taken, making them doubly-hard to kill.

But the human military forces have not stood still either. We are going to make new technologies available for the Hera Campaign, with pride of place going to the Sniper Tower – a deadly new combat tower that seeks the most deadly prey within range. We have also separated the blocking towers from the rest of the tower-tech to give the player both drop-pods (that land a new combat or support tower) and block-pods (that land a blocking tower).

In addition you now play as the Supreme Commander of the entire armada. The player controls events for the whole campaign as well as each individual Imoon mission. The player chooses which Imoon to concentrate their resources of drop-pods, block-pods and credits into via the new Tactical Layer interface. Success on a mission results in more resources and the unlocking of new technologies.

Savage Moon: The Hera Campaign brings the best of the action-strategy gameplay from the PS3 onto the PSP. It continues the relentless assaults by very large bugs but re-works the overall strategy, adding key aspects to make the game a truly mobile, gaming experience:

• 20 New Imoons
• 2 new species plus 2 new sub-species of Insectocyte
• New interface allowing the player to plan the whole campaign
• Unlock vengeance mode version of each Imoon
• Unlock hidden alternative music soundtracks by Parasite & special guests
• Designed specifically for PSP
• Tactical Skills menu – adds new gameplay controls in addition to Command Skills