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Modern open-source C# .NET 10 Asheron's Call client. Faithful port of retail client behaviour to Silk.NET with a plugin API.
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Erik 133c22ed2f fix(app): Phase A.1 — restore MaxCompletionsPerFrame=4 (uncap caused OOM) 
The previous fix in f792931 set MaxCompletionsPerFrame to int.MaxValue
on the theory that synchronous loading made the cap pointless. That
ignored the GPU upload cost: applying 25 landblocks in one Tick
allocates ~25 terrain VBOs + hundreds of entity GfxObj sub-mesh VBOs
+ all unique texture uploads in a single frame, which observably
crashes with OutOfMemoryException on the first frame after login.

The pending-spawn list (also added in f792931) is what actually
fixes the spawn-drop bug — it makes the cap safe by parking
late-arriving spawns until their landblock loads. With both fixes:

- Cap=4 spreads the 25-landblock first-frame load over ~7 frames
  (~116ms at 60fps, below human perception)
- Spawns for the 21 not-yet-loaded landblocks land in pending and
  back-fill as each one arrives over the next 6 frames
- No data lost, no OOM

219 tests still green.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 23:23:11 +02:00
docs fix(app): Phase A.1 — separate Visible from Resident in StreamingRegion 2026-04-11 22:08:17 +02:00
src fix(app): Phase A.1 — restore MaxCompletionsPerFrame=4 (uncap caused OOM) 2026-04-11 23:23:11 +02:00
tests fix(app): Phase A.1 — pending-spawn list in GpuWorldState (proper fix) 2026-04-11 23:19:40 +02:00
.gitignore chore: phase 0 — skeleton + dat asset inventory 2026-04-10 09:02:56 +02:00
AcDream.slnx feat(net): AcDream.Core.Net scaffold + ISAAC keystream (Phase 4.1) 2026-04-11 14:14:28 +02:00
CLAUDE.md docs(claude): tighten operating instructions + roadmap discipline + subagent policy 2026-04-11 21:48:19 +02:00
README.md chore: phase 0 — skeleton + dat asset inventory 2026-04-10 09:02:56 +02:00

README.md

acdream

Experimental modern open-source Asheron's Call client in C# / .NET 10.

Status: pre-alpha, not playable. Phase 0 only — dat file asset inventory.

Stack: .NET 10, Chorizite.DatReaderWriter for dat parsing. Silk.NET + Avalonia planned for rendering/UI (not yet wired up).

Requires: A retail Asheron's Call install (Turbine/Microsoft property — supply your own). Set ACDREAM_DAT_DIR environment variable to the directory containing client_portal.dat, client_cell_1.dat, client_highres.dat, and client_local_English.dat, or pass it as the first CLI argument.

Layout

  • src/AcDream.Cli/ — console app that dumps asset counts from a dat directory
  • references/ — local read-only reference material (ACE, ACViewer, WorldBuilder, DatReaderWriter, holtburger, retail AC install). Gitignored.

Run

dotnet run --project src/AcDream.Cli -- "C:\path\to\Asheron's Call"

Or set ACDREAM_DAT_DIR and run without args.