Which game series and titles does Frictional Games make?

Frictional Games is the studio behind two core horror series: Amnesia and SOMA. The Amnesia line includes The Dark Descent, A Machine for Pigs, Rebirth, and The Bunker (plus the Justine expansion and the Amnesia: Collection bundle), while SOMA stands as its own standalone title with related merchandise. The studio also maintains the HPL engine (versions HPL1, HPL2, HPL3) and runs community mod jams built on it.

The Amnesia series

The Amnesia franchise is the studio's largest body of work, and its own announcements describe Amnesia: Design Works as chronicling "the development of all four games in the Amnesia series." Those four main titles are:

Two additional items appear alongside the main games:

• Amnesia: Justine — listed as its own category on the site, an expansion tied to the original game's era.
• Amnesia: Collection — a bundled category grouping the Amnesia titles.

A companion book, Amnesia: Design Works, covers "the writing, design and art of the Amnesia series," tracing the path "from Castle Brennenburg down into the darkest Bunker" — a useful single reference if you want development context across all four games rather than playing them.

SOMA

SOMA is a separate, standalone title rather than part of the Amnesia line. The site's clearest current SOMA item is merchandise: a Simon Jarrett plushie, announced 18 June 2024, described with the character's in-game framing ("Please don't leave me alone...") and his background as a cross-century man built to withstand deep underwater trenches. The plushie's existence confirms SOMA remains an active property for the studio, but the announcement itself is merchandise news, not a game release.

The HPL engine and modding

Frictional Games develops and supports the HPL engine, and the site organizes modding activity by engine version: HPL1, HPL2, and HPL3. This matters if you want to build on or modify the studio's games rather than just play them.

The studio runs periodic Frictional Mod Jams using the HPL engine as the medium:

• Frictional Mod Jam 2026 — "WHAT IS REALITY?" runs May 27 to August 25, 2026, with submissions through a linked form and a prize of one ROG Xbox Ally from ASUS ROG. The theme centers on questioning whether what you see is real or merely convincing.
• Frictional Mod Jam 2024 — Escape Room Edition was announced 28 May 2024, framed around creativity, strategy, and mystery.

If you're evaluating whether to invest time in the engine, the jam structure tells you the practical entry point: pick the HPL version matching the game you want to mod, then work within a themed submission window.

How to decide what to look at first

• Want the flagship horror series? Start with the four main Amnesia games; The Bunker is the most recently patched and the current endpoint of the series.
• Want a single self-contained experience? SOMA is its own title, not a series entry.
• Want development or art context? Amnesia: Design Works covers all four games in one volume.
• Want to create rather than play? The HPL engine (HPL1/HPL2/HPL3) and the mod jams are the route in; check the current jam's dates and theme before committing.

One caution: the site's news feed mixes game announcements, patches, merchandise, and events under shared categories, so a headline mentioning a title isn't necessarily a game release — the Simon plushie post is the clearest example.