LifePlay Revival — Unreal Engine 5.5 port

Community continuation of LifePlay by Vinfamy, a free, open-source and moddable life simulation RPG (adult content), ported from Unreal Engine 4.27 to Unreal Engine 5.5.

Download the full project

This Git repository does not contain the heavy assets (see Repository contents). To build or play, download the full source archive. The V1.1 archive will be linked here once uploaded; until then, use the V1 archive below and update the Git files from the v1.1 tag (the heavy assets did not change between V1 and V1.1).

LifePlay_Revival_V1_UE5.5_Full_Source_Code.7z (Mega, 4.85 GB, 8.36 GB extracted)

• SHA-256: 38ee16640f960317348a044195a23b55ac8eda34aec085e661034dc9c26cc594
• Same layout as the original author's full source archives: the project folder at the archive root, 7z LZMA2.
• Contains the complete Content folder (including Content/Heavy converted to UE5 format), the compiled editor modules in Binaries (the project opens without compiling), the StreetMap and ModdingExtra plugins, and a .git folder matching this repository.
• Not included: Saved, Intermediate (regenerated on first build), local development tools.

Check the file after downloading (PowerShell):

Get-FileHash .\LifePlay_Revival_V1_UE5.5_Full_Source_Code.7z -Algorithm SHA256

Status: V1.1 (tag v1.1, 2026-10-01)

Changes since V1, each validated in game against UE 4.27 on an identical play path:

• Text search fix (CX-B12). In UE 5.5, searching for an empty substring reports a match at position 0, whereas UE 4.27 reported no match. Blueprint Contains, Split and Find Substring nodes therefore behaved differently (for example, face morph filtering let every morph through). 385 nodes in 28 Blueprints now call LPStringCompat functions that keep the UE 4.27 behaviour. Runtime errors per character went back to UE 4.27 levels (session errors 30 → 7, out-of-bounds reads −22 %).
• Deprecated nodes replaced. 56 Get SkeletalMesh and 6 GetRandomPointInNavigableRadius nodes (same behaviour, non-deprecated calls): Blueprint compilation and cooking now report 0 warnings.
• StreetMap verified. All 280 cities (roads, buildings, amenities) and their 280 static meshes are identical to UE 4.27; the smaller files come from the UE5 asset format, not from data loss.
• Shipping build. The Shipping configuration builds and was played without issue, with the same layout as the original releases (loose files, no .pak, so the game stays moddable).
• Issues found during testing that also exist in UE 4.27 are documented in the error register and left unchanged.

Status: V1 (tag v1.0, 2026-09-30)

• The LifePlayEditor target compiles with no errors; every Blueprint loads and compiles.
• All 8,563 project packages are saved in UE5 format.
• A packaged Development build was played for about two hours with no crash: distinct, visible and dressed characters, scenes, saving and reloading.
• Known issues and planned work: Docs/Migration/Registre_Erreurs.md (error register) and the L7 work packages in Docs/Migration/04_Cahier_Des_Charges.md.

Branches

Branch	Contents
main	reference: the latest validated UE 5.5 version, base for further development
ue5.5-v1.1	the V1.1 as validated
ue5.5-v1	the V1 as validated
archive/ue4.27	the project as it ran on UE 4.27, before the migration (archive)
archive/original	Vinfamy's original repository, V3.6 (archive)

Each migration step has <step>-avant / <step>-apres (before / after) tags. The change log Docs/Migration/Journal_Modifications.md records every change with its rollback procedure.

Repository contents

Same rules as the original repository (see .gitignore): C++ code, configuration, the ModdingExtra and StreetMap plugins, gameplay content (BPs, UI, Structs, Render, Scenes), the text data in Content/Modules, and documentation.

Not in Git: Content/Heavy (3D models, textures, animations: about 6 GB), Content/Saves, *.png, *.7z and *.mp4 files, binaries and caches. The repository alone is not enough to build or play: use the archive above.

Requirements

• Unreal Engine 5.5 (validated with 5.5.4), Windows 64-bit.
• Visual Studio 2022 with the "Desktop development with C++" workload, to rebuild the C++ modules.
• The .uproject references McpAutomationBridge, an optional AI editor-automation plugin used during the port (ChiR24/Unreal_mcp, MIT). It is not distributed here: when the editor asks, let it disable the plugin.

Migration documentation

The migration documentation is written in French. Entry point: Docs/Migration/README.md (LifePlay architecture, software audit, test plan, specifications, change log, error register). The checking scripts (Tools/*.ps1) and the diagnostic and fix commandlets (Source/LifePlayEditorTools) are described there.

Licenses

Code and content are licensed under AGPL-3.0 (LICENSE), like the original project. Third-party licenses and credits (StreetMap, OpenStreetMap, ManuelLab, MakeHuman, 3D models, modding): see Licenses/.