[1][2] After the release of Middle-earth: Shadow of Mordor, the studio started working on a new engine (based on LithTech technology) for larger-scale battles called "Firebird".

When Microsoft decided not to use the engine Monolith bought back the rights to it and continued development on their own.

Monolith released their game No One Lives Forever (NOLF) featuring this version of the engine, however it was later revised to LithTech 2.2.

This engine was used on an internally developed title, Tex Atomic's Big Bot Battles.

[6] LithTech Inc. developed a different engine specifically for Monolith's title, Aliens versus Predator 2.

The unreleased Monolith game Shogo II was being developed with this iteration of the LithTech engine.

[citation needed] A custom version of Jupiter was made especially for Monolith, for use with their Tron 2.0 game; this release was codenamed LithTech Triton.

Compared to its precursor Jupiter, the Extended version was driven by a new DirectX 9 renderer and other advancements, including the addition of Havok physics software for improved real-world physics simulation, dynamic per-pixel lighting, bump mapping, normal mapping, and specular highlighting.

[16] Firebird was created with purpose of larger-scale battles and the expansion of the Nemesis system for Middle-earth: Shadow of War.

In 2024 the Monolith website christened this incarnation as V7, with the engine used in Middle-Earth: Shadow of Mordor titled V6.