By default, Black Flag has a framerate cap (often around 63 FPS). AC4 Tweaker allows you to unlock the FPS cap up to 240 FPS. However, players are advised to keep it below 120 FPS to prevent physics issues, such as broken elevators in first-person sequences.
[ac4tweaker] Detected Cortex-A72 r0p3 [ac4tweaker] SCTLR_EL1 = 0x00C50838 (MMU enabled, little-endian, SA) [ac4tweaker] ACTLR_EL1 = 0x40 (DISABLE_L1_PREFETCH) [ac4tweaker] L1 I-cache: 48KB, 3-way, 64B line [ac4tweaker] PMU cycle counter started...
Features like "Unlock all cosmetics" for the player and ship. ac4tweaker
Pull requests are welcome – especially for new CPU quirks, safer write guards, or a Linux kernel module alternative to /dev/mem .
Installing AC4 Tweaker requires a few prerequisite steps to ensure it loads correctly with the game: By default, Black Flag has a framerate cap
Black Flag remains playable and visually competitive on contemporary hardware, effectively acting as a community-driven "remaster". Implementation and Usage Users generally install AC4Tweaker by placing the executable or DLL files into the game's root directory, where it intercepts the game engine's initialization process to apply its patches. While highly effective for performance, users should note that modifying game files can sometimes interfere with official Ubisoft features, such as Abstergo Challenges or cloud saving, depending on the specific version of the mod used. Would you like a more
| Feature | Description | |---------|-------------| | | Read/write system control registers (SCTLR, ACTLR, CCSIDR, etc.) from userspace | | Cache manipulation | Invalidate/clean L1/L2 caches by set/way or virtual address | | TLB control | Flush TLB entries, walk page tables manually, inspect ASID | | Branch predictor override | Enable/disable branch prediction, reset BTB on demand | | PMU access | Configure performance counters for precise event sampling (cache misses, TLB refills, branch mispredictions) | | Memory tagging simulation | Emulate MTE-like behavior on non‑MTE hardware via software traps | | Watchpoint/breakpoint injection | Set hardware breakpoints and watchpoints for reverse engineering | Installing AC4 Tweaker requires a few prerequisite steps
The mod is widely hosted and maintained on the AC4 Tweaker Nexus Mods page , where you can find full version histories and installation instructions. AC4 Tweaker - Assassin's Creed IV: Black Flag - Nexus Mods