# Game modules

Surveyed 2026-10-31 on Sacred 2 Gold (Steam) with Community Patch 2.65.1.

`sacred2.exe` (client, UI) statically imports the game DLLs, so all of them are
mapped before our DLL's `DllMain` runs. All DLLs prefer image base 0x10000000
and none is ASLR-enabled; the loader relocates all but the first, so their
running bases differ from Ghidra's. `re::Address{module, va}` holds the
Ghidra VA and resolves it at runtime; `sacred2K.log` lists the running bases.

| Module | Role | Exports | Notes |
|---|---|---|---|
| `sacred2.exe`   | client: main loop, UI, input | 1 | image base 0x400000, sections `.text .rdata .rdata .data .data .rdata .common .rsrc`; "linker 4.0", PE date 2010 (modified by the Community Patch) |
| `orcSystem.dll` | "Orc" engine base: `Orc::String`, `Log`, `LogManager`, files, timers, singletons | 3231 | 2009-07 |
| `s2core.dll`    | shared types: kernel events (`cEvent*`), world/sector positions, waypoints, type manager | 1966 | |
| `s2logic.dll`   | game logic: creatures, items, quests, dialogs, factions, drops, balance (`cLogicMgr`, `c*Mgr` singletons) | 5398 | |
| `s2logicai.dll` | AI | 176 | |
| `s2render.dll`  | renderer (D3D9, Granny, PhysX) | 2258 | |

Other modules, not in the build check yet: `s2logicdll.dll`, `s2editor.dll`,
`s2vista.dll`, the `plugin_*.dll` set from `plugins.cfg` (file system, zip,
particle FX, Bink, Miles, OpenAL; loaded at runtime), third-party libraries
(`granny2`, `binkw32`, `mss32`, PhysX, `stlport.5.0`, MSVC 8 runtime). `s2gs.exe`
is the dedicated server.

Toolchain: MSVC 8 (VS 2005), STLport 5.0 strings and containers, C++ classes
exported with decorated names (`?method@Class@@...`), so most functions of the
DLLs are named. `tools/exports.mjs` lists them; Ghidra demangles them.

## Orc::String

STLport string with a 16-byte inline buffer, 0x18 bytes; see
`src/game/orc/string.h`.

## Data

`pak\*.zip` (graphics, sectors, sound), `scripts\` (client/server/shared Lua-like
text configs), `locale\de_DE` (German texts `global.res`, item name CSVs,
speech). User options: `%LOCALAPPDATA%\Ascaron Entertainment\Sacred 2\options.txt`.