diff --git a/rogueviz/bringris.cpp b/rogueviz/bringris.cpp
index ceed4f45..8da4b87b 100644
--- a/rogueviz/bringris.cpp
+++ b/rogueviz/bringris.cpp
@@ -1,7 +1,7 @@
 // non-Euclidean falling block game, implemented using the HyperRogue engine
 // Copyright (C) 2011-2021 Zeno Rogue, see '../hyper.cpp' for details
 
-// compile with: ./mymake -O3 rogueviz/bringris.cpp rogueviz/subquotient.cpp and then launch with -bringris
+// compile with: ./mymake -O3 -rv rogueviz/bringris.cpp rogueviz/subquotient.cpp and then launch with -bringris
 // add -DBRINGRIS for standalone Bringris
 
 #define BRINGRIS_VER "2.0"
diff --git a/rogueviz/nilrider/nilrider.cpp b/rogueviz/nilrider/nilrider.cpp
index 755f6454..b9448c90 100644
--- a/rogueviz/nilrider/nilrider.cpp
+++ b/rogueviz/nilrider/nilrider.cpp
@@ -1,7 +1,7 @@
 // Nil Rider
 // Copyright (C) 2022-2025 Zeno Rogue, see '../../hyper.cpp' for details
 
-// compile with: ./mymake -O3 rogueviz/nilrider/nilrider.cpp and then launch with -nilrider
+// compile with: ./mymake -O3 -rv rogueviz/nilrider/nilrider.cpp and then launch with -nilrider
 // add -DNILRIDER for standalone Nil Rider
 
 #if NILRIDER
diff --git a/rogueviz/seuphorica.cpp b/rogueviz/seuphorica.cpp
index 18f91787..5bbb8eed 100644
--- a/rogueviz/seuphorica.cpp
+++ b/rogueviz/seuphorica.cpp
@@ -2,7 +2,7 @@
 // Copyright (C) 2025 Zeno Rogue, see 'hyper.cpp' for details
 // the Seuphorica repo (seuphorica.cpp and dictionary files) needs to be placed in the 'seuphorica' subdirectory
 
-// compile with: ./mymake -O3 rogueviz/seuphorica.cpp and then launch with -seuphorica
+// compile with: ./mymake -O3 -rv rogueviz/seuphorica.cpp and then launch with -seuphorica
 
 #include "rogueviz.h"
 #include <fstream>