diff --git a/rogueviz/ads/ds-game.cpp b/rogueviz/ads/ds-game.cpp
index 68b208ee..1b782268 100644
--- a/rogueviz/ads/ds-game.cpp
+++ b/rogueviz/ads/ds-game.cpp
@@ -394,6 +394,11 @@ bool ds_turn(int idelta) {
 
     auto& mshift = main_rock->pt_main.shift;
     if(mshift) {
+      #if RVCOL
+      constexpr ld win_time = 60;
+      if(current.shift < win_time && (current.shift + mshift) >= win_time && !game_over && all_params_default())
+        rogueviz::rv_achievement("DSGAME");
+      #endif
       current.shift += mshift;
       current.T = current.T * lorentz(2, 3, mshift);
       mshift = 0;