Games Like FlashTrainer
FlashTrainer is a standalone utility designed to build FPS anti-flash muscle memory and reactions. By overlaying a transparent, top-most window on your screen, it simulates incoming flashbang throws and detonations. Currently supports most mainstream FPS games running in borderless or windowed mode.
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FlashTrainer
SteamAbout FlashTrainer
1. Simulation & Parameters
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2 Flash Simple Simulation — Military Flashbang, Spherical Flash
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Customizable Parameters — Fuse time (0.2s~3.0s), Throw speed (10~100), Full blind angle (0°~179°), Partial blind angle (1°~180°)
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Blind & Recovery Control — Blind hold duration (0.1s~10.0s), Blind fade duration (0.1s~5.0s), Dynamic interpolation angle recovery
2. Spawner & Training Modes
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2 Trigger Modes — Manual spawner hotkey (\ key), Auto-loop spawner (Home key) (Switch seamlessly anytime)
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Spawn Delay Range — Min spawn delay (0.1s~60.0s), Max spawn delay (0.1s~60.0s) (With value lock validation)
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Chain Flash Mechanism — Chain flash probability slider (0%~100%, Default 0%)
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One-Key Menu Return — Press END to instantly exit training mode and return to the config menu
3. Evasion & Response
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Directional Movement Evasion — Supports W, A, D key movement evasion simulation
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Evasion Tuning — Evasion required time (0.1s~3.0s), Simulation speed (0~30)
4. Visual & Eye Care
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Opacity Slider — Flash opacity adjustment (0%~100% with real-time percentage display)
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Eye Protection Mode — Toggle dark flash screen to reduce eye strain during long practice sessions
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Transparent Overlay — Native borderless transparent rendering via Windows DWM
5. Input & Multi-Monitor Calibration
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RawInput Engine — Captures physical mouse delta via background thread with zero latency and zero simulated inputs
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360° Calibration — Press L in-game for instant viewport calibration mapped directly to your DPI and in-game sensitivity
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Auto Profile Binding — Automatically saves distinct calibration profiles for different games, DPIs, and sensitivities
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Multi-Monitor Support — Enumerates display setups and lets you assign the Overlay to any target monitor
6. Custom Audio Engine
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Custom Audio Import — Load local throw and explosion sound files (.wav / .mp3 / .ogg, Optional)
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Smart Sound Trimming — Automatically trims explosion audio down to 0.5s in memory for clean, non-overlapping bursts
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Corrupted Path Self-Healing — Automatically clears missing file paths and reverts safely to defaults
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Master Volume Control — Volume slider (0%~100%)
7. Smart Window Management
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Dual-State Transition — Menu mode automatically un-sets topmost status (allowing easy alt-tabbing or clicking other apps); Training mode switches to full overlay topmost rendering with input pass-through
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Native UAC Manifest — Requests admin privileges clean at launch via app.manifest, avoiding double Splash Screen reloads and resolving in-game input blocking
8. Preferences & Profiles
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Save/Load Configurations — Automatically saves DPI, sensitivity, game presets, custom audio, and calibration profiles (Supports Steam Cloud)
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One-Key Reset — Quickly restore default parameter configurations
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Multi-Language — Simplified Chinese and English (Toggle anytime from launch or menu screens)
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Clean Exit — Safe in-app quit button ensures RawInput hooks detach cleanly from the system
9. Notes & Disclaimer
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Borderless Windowed or Windowed Fullscreen mode is required for target games
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Always use the in-app "Quit" button to ensure RawInput hooks detach safely
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This software is an independent training tool for reaction and muscle memory, and does not replicate or replace specific mechanics of third-party games
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Utilizes native Windows RawInput passive listening and external Overlay rendering—free of memory access, process injection, or input automation
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Configuration and calibration files can be saved to Steam Cloud
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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