diff --git a/BizHawk.Emulation/BizHawk.Emulation.csproj b/BizHawk.Emulation/BizHawk.Emulation.csproj
index 1775107605..4144644e46 100644
--- a/BizHawk.Emulation/BizHawk.Emulation.csproj
+++ b/BizHawk.Emulation/BizHawk.Emulation.csproj
@@ -184,10 +184,12 @@
+
+
diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper074.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper074.cs
new file mode 100644
index 0000000000..d6d705dd75
--- /dev/null
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper074.cs
@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BizHawk.Emulation.Consoles.Nintendo
+{
+ class Mapper074 : MMC3Board_Base
+ {
+ /*
+ Here are Disch's original notes:
+ ========================
+ = Mapper 074 =
+ ========================
+
+
+ aka:
+ --------------------------
+ Pirate MMC3 variant
+
+
+ Example Games:
+ --------------------------
+ Di 4 Ci - Ji Qi Ren Dai Zhan
+ Ji Jia Zhan Shi
+
+
+ Notes:
+ --------------------------
+ This mapper is a modified MMC3 (or is based on MMC3?).
+
+ In addition to any CHR-ROM present, there is also an additional 2k of CHR-RAM which is selectable. CHR pages
+ $08 and $09 select CHR-RAM, other pages select CHR-ROM
+
+ Apart from that, this mapper behaves exactly like your typical MMC3. See mapper 004 for details.
+
+ TODO: implement CHR-RAM behavior
+ */
+
+ public override bool Configure(NES.EDetectionOrigin origin)
+ {
+ //analyze board type
+ switch (Cart.board_type)
+ {
+ case "MAPPER074":
+ break;
+ default:
+ return false;
+ }
+
+ BaseSetup();
+ return true;
+ }
+ }
+}
diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper192.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper192.cs
new file mode 100644
index 0000000000..6038650f40
--- /dev/null
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper192.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BizHawk.Emulation.Consoles.Nintendo
+{
+ class Mapper192 : MMC3Board_Base
+ {
+ /*
+ Here are Disch's original notes:
+ ========================
+ = Mapper 192 =
+ ========================
+
+
+ aka:
+ --------------------------
+ Pirate MMC3 variant
+
+
+ Example Game:
+ --------------------------
+ Ying Lie Qun Xia Zhuan
+
+
+ Notes:
+ --------------------------
+ This mapper is a modified MMC3 (or is based on MMC3?).
+
+ In addition to any CHR-ROM present, there is also an additional 4k of CHR-RAM which is selectable.
+
+ CHR Pages $08-$0B are CHR-RAM, other pages are CHR-ROM.
+
+ Apart from that, this mapper behaves exactly like your typical MMC3. See mapper 004 for details.
+ */
+
+ public override bool Configure(NES.EDetectionOrigin origin)
+ {
+ //analyze board type
+ switch (Cart.board_type)
+ {
+ case "MAPPER192": //adelikat: I couldn't find any ROMs that weren't labeled as Mapper 04. All of these ran fine as far as I could tell, but just in case, I added this. I'm considering the mapper fully supported until proven otherwise.
+ break;
+ default:
+ return false;
+ }
+
+ BaseSetup();
+ return true;
+ }
+ }
+}