Issues

• Suggestion: built-in Moonlight streaming host with hardware encoding

  fxgl/steamac#63 · Filter by author steinpdh opened on Nov 2, 2026

• Moon Sweepers: GPU hang / timeout → VK_ERROR_DEVICE_LOST on KosmicKrisp (DX11 and DX12), works fine on MoltenVK

  fxgl/steamac#62 · Filter by author jaimeelso opened on Nov 2, 2026

• Microphone capture is silent in the guest (Steam voice test and VRChat show no input level)

  fxgl/steamac#61 · Filter by author bellflower2015 opened on Nov 2, 2026

• Age of Mythology Retold campatibility fix?

  fxgl/steamac#60 · Filter by author Star-Climber opened on Nov 2, 2026

• Shared D3D11→D3D12 video textures come out white/black (Venus rejects external OPTIMAL images; KosmicKrisp doesn't share tiled images on imported memory)

  fxgl/steamac#58 · Filter by author jason5545 opened on Nov 2, 2026

• Age of Empires IV compatibility on Apple Silicon (M5 Pro)

  fxgl/steamac#55 · Filter by author brunomassaini opened on Nov 1, 2026

• No microphone input on 1.9.4-eac.1 and 1.9.6 — M5 Pro MacBook Pro, macOS 26.5.1

  fxgl/steamac#53 · Filter by author HsiaoTzuOWO opened on Nov 1, 2026

• repro/sparse.c: "D32 sparse depth test/write" fails on M5 Pro / macOS 27.2 (shipped 1.9.4 KosmicKrisp): the bound tile behaves as unbound

  fxgl/steamac#51 · Filter by author jayvee6 opened on Nov 1, 2026

• 48 GB Mac: automatic sizing (16 GB VM + 16 GB GPU budget) plus parallel Metal compiles exhausted host RAM; WindowServer watchdog rebooted the Mac

  fxgl/steamac#50 · Filter by author jayvee6 opened on Nov 1, 2026

• Ratchet & Clank: Rift Apart (1895880) on MoltenVK: 6 pipelines fail MSL compilation (rvalue address in a BDA atomic, device-space cast of an output), game exits at ~39 s

  fxgl/steamac#49 · Filter by author jayvee6 opened on Nov 1, 2026

• Ratchet & Clank: Rift Apart (1895880) on KosmicKrisp: stuck on the loading screen after #47 (no error, I/O stops at ~2.1 GB)

  fxgl/steamac#48 · Filter by author jayvee6 opened on Nov 1, 2026

• Cs2

  fxgl/steamac#46 · Filter by author R3M4IK opened on Nov 1, 2026
  2

• Microsoft Flight Simulator 2024 (2537590): needs D3D12 FL 12_1 + SM 6.7; with overrides it hits int3 in the game exe at the same address on Proton 11 ARM64 and Proton 10 x86-64

  fxgl/steamac#44 · Filter by author jason5545 opened on Nov 1, 2026
  1

• [EAC/FEX] HELLDIVERS 2 fails to map Linux EAC module (error 206) on SteamOS ARM64

  fxgl/steamac#36 · Filter by author balkacer opened on Oct 25, 2026
  1

• Suggestion: per-game advanced settings

  fxgl/steamac#35 · Filter by author flatsiedatsie opened on Oct 25, 2026

• Suggestion: make KosmicKrisp the default setting if Mac OS is new enough

  fxgl/steamac#33 · Filter by author flatsiedatsie opened on Oct 24, 2026
  1

• Clair Obscur, entire game engine is blurry? Menu works fine but the game itself has a heavy gaussian blur effect at all graphics settings

  fxgl/steamac#29 · Filter by author moheemo-glitch opened on Oct 18, 2026

• Planet Zoo 2 (3219030): oversized sparse texel buffer view aborts the VMM in KosmicKrisp (fix attached); then OpenExistingHeapFromAddress needs VK_EXT_external_memory_host

  fxgl/steamac#28 · Filter by author jazzyblu opened on Oct 18, 2026

• FNV (22380): Goodsprings exteriors 8-15 FPS and GPU faults (BIF0 page fault / MTL_COMMAND_QUEUE_ERROR_TIMEOUT) on M2 Pro

  fxgl/steamac#27 · Filter by author rtmandreyev opened on Oct 18, 2026

• Easy Anti-Cheat

  fxgl/steamac#26 · Filter by author WhisperSign opened on Oct 17, 2026
  1

• Master Chief Collection - Halo 3 loses GPU connection after a minute or two?

  fxgl/steamac#24 · Filter by author flatsiedatsie opened on Oct 15, 2026
  2

• How to manage memory use?

  fxgl/steamac#22 · Filter by author flatsiedatsie opened on Oct 15, 2026

• Suggestion: allow an SD-card or external drive to be connected

  fxgl/steamac#21 · Filter by author flatsiedatsie opened on Oct 14, 2026
  2

• Shader compilation stutter prevention

  fxgl/steamac#20 · Filter by author flatsiedatsie opened on Oct 14, 2026

• Suggestion: rename "FX Steam Launcher" to Steamac?

  fxgl/steamac#19 · Filter by author flatsiedatsie opened on Oct 14, 2026