diff --git a/Assets/dll/dsda.wbx.zst b/Assets/dll/dsda.wbx.zst
index 50854fa449..11aef2785c 100644
Binary files a/Assets/dll/dsda.wbx.zst and b/Assets/dll/dsda.wbx.zst differ
diff --git a/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.ISettable.cs b/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.ISettable.cs
index ba5eb6ddd5..2d2cdf4923 100644
--- a/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.ISettable.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.ISettable.cs
@@ -246,6 +246,11 @@ namespace BizHawk.Emulation.Cores.Computers.Doom
 			[TypeConverter(typeof(DescribableEnumConverter))]
 			public MapDetail MapDetails { get; set; }
 
+			[DisplayName("Full Vision")]
+			[Description("Disables all darkness.\n\nAvailable in vanilla via the IDBEHOLDL cheat code.\n\nRequires restart.")]
+			[DefaultValue(false)]
+			public bool FullVision { get; set; }
+
 			[DisplayName("Player Point of View")]
 			[Description("Which of the players' point of view to use during rendering.")]
 			[Range(1, 4)]
@@ -271,7 +276,8 @@ namespace BizHawk.Emulation.Cores.Computers.Doom
 					paramName: nameof(o));
 			}
 			var ret = (_settings.ScaleFactor == o.ScaleFactor
-				&& _settings.InternalAspect == o.InternalAspect)
+				&& _settings.InternalAspect == o.InternalAspect
+				&& _settings.FullVision == o.FullVision)
 				? PutSettingsDirtyBits.None
 				: PutSettingsDirtyBits.RebootCore;
 			_settings = o;
diff --git a/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.cs b/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.cs
index e3380bd28a..e0a5f25fdd 100644
--- a/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/Doom/DSDA.cs
@@ -179,6 +179,7 @@ namespace BizHawk.Emulation.Cores.Computers.Doom
 					_elf.AddReadonlyFile(_configFile, "dsda-doom.cfg");
 
 					var initSettings = _syncSettings.GetNativeSettings();
+					initSettings.FullVision = _settings.FullVision ? 1 : 0;
 					CreateArguments(initSettings);
 					var initResult = _core.dsda_init(ref initSettings, _args.Count, _args.ToArray());
 					if (!initResult)
diff --git a/src/BizHawk.Emulation.Cores/Computers/Doom/LibDSDA.cs b/src/BizHawk.Emulation.Cores/Computers/Doom/LibDSDA.cs
index 31f27b39e6..2fe451cc96 100644
--- a/src/BizHawk.Emulation.Cores/Computers/Doom/LibDSDA.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/Doom/LibDSDA.cs
@@ -58,6 +58,7 @@ namespace BizHawk.Emulation.Cores.Computers.Doom
 			public int Player4Class;
 			public int PreventLevelExit;
 			public int PreventGameEnd;
+			public int FullVision;
 			//public uint RNGSeed;
 		}
 
diff --git a/waterbox/dsda/BizhawkInterface.c b/waterbox/dsda/BizhawkInterface.c
index c90cec70eb..37371ccbea 100644
--- a/waterbox/dsda/BizhawkInterface.c
+++ b/waterbox/dsda/BizhawkInterface.c
@@ -368,6 +368,18 @@ ECL_EXPORT int dsda_init(struct InitSettings *settings, int argc, char **argv)
   // Enabling DSDA output, for debugging
   enableOutput = 1;
 
+  if (settings->FullVision)
+  {
+    for (int i = 0; i < 4; i++)
+    {
+      if (playeringame[i])
+      {
+        players[i].fixedcolormap = 1;
+        players[i].powers[pw_infrared] = -1;
+      }
+    }
+  }
+
   return 1;
 }
 
diff --git a/waterbox/dsda/BizhawkInterface.h b/waterbox/dsda/BizhawkInterface.h
index c40c3b6e95..cdefbdd810 100644
--- a/waterbox/dsda/BizhawkInterface.h
+++ b/waterbox/dsda/BizhawkInterface.h
@@ -155,6 +155,7 @@ struct InitSettings
   int Player4Class;
   int PreventLevelExit;
   int PreventGameEnd;
+  int FullVision;
   //unsigned int RNGSeed;
 } __attribute__((packed));