diff --git a/Content.Tests/DMProject/Tests/Builtins/params2list.dm b/Content.Tests/DMProject/Tests/Builtins/params2list.dm
index 1e0d04b551..f36f71da20 100644
--- a/Content.Tests/DMProject/Tests/Builtins/params2list.dm
+++ b/Content.Tests/DMProject/Tests/Builtins/params2list.dm
@@ -1,6 +1,6 @@
 /proc/RunTest()
 	ASSERT(params2list("a;b;c") ~= list(a="", b="", c=""))
-	ASSERT(params2list("a;a;a") ~= list(a=list("", "", ""))) // Crazy
+	ASSERT(json_encode(params2list("a;a;a")) == @#{"a":["","",""]}#)
 
 	ASSERT(params2list("a=1;b=2") ~= list(a="1", b="2"))
 	ASSERT(params2list("a=1;a=2") ~= list(a="2"))
diff --git a/Content.Tests/DMProject/Tests/List/AssocListCombine.dm b/Content.Tests/DMProject/Tests/List/AssocListCombine.dm
index 57fa5db7e9..7e3edc3dc0 100644
--- a/Content.Tests/DMProject/Tests/List/AssocListCombine.dm
+++ b/Content.Tests/DMProject/Tests/List/AssocListCombine.dm
@@ -1,7 +1,7 @@
 /proc/RunTest()
 	var/list/L = list("A")
 	L |= list("B" = 1)
-	ASSERT(L ~= list("A", "B"))
+	ASSERT(L ~= list("A", "B" = 1))
 	ASSERT(L["A"] == null)
 	ASSERT(L["B"] == 1)
 
diff --git a/Content.Tests/DMProject/Tests/List/ListCut.dm b/Content.Tests/DMProject/Tests/List/ListCut.dm
index 8e1b2c7bfb..4d9f9cbc25 100644
--- a/Content.Tests/DMProject/Tests/List/ListCut.dm
+++ b/Content.Tests/DMProject/Tests/List/ListCut.dm
@@ -6,6 +6,6 @@
 
 	A = list(a = 10, b = 20)
 	A.Cut(1, 2)
-	ASSERT(A ~= list("b"))
+	ASSERT(A ~= list("b" = 20))
 	ASSERT(A["a"] == null)
 	ASSERT(A["b"] == 20)
diff --git a/Content.Tests/DMProject/Tests/Operators/equivalence.dm b/Content.Tests/DMProject/Tests/Operators/equivalence.dm
index 64684c7089..129e6f27aa 100644
--- a/Content.Tests/DMProject/Tests/Operators/equivalence.dm
+++ b/Content.Tests/DMProject/Tests/Operators/equivalence.dm
@@ -14,6 +14,13 @@
 	ASSERT((l1 ~! l2) == TRUE)
 	ASSERT((l1 ~! l3) == TRUE)
 	ASSERT((l1 ~! l4) == TRUE)
+	
+	// As of BYOND 516, we now care about assoc values for equivalence
+	var/list/one = list(a=1,b=3,c="hi")
+	var/list/two = list(a=1,b=2,c="hi")
+	var/list/three = list(a=1,b=3,c="hi")
+	ASSERT((one ~! two) == TRUE)
+	ASSERT((one ~= three) == TRUE)
 
 	var/matrix/m1 = matrix(1,2,3,4,5,6)
 	var/matrix/m2 = matrix(-1,-2,-3,-4,-5,6)
diff --git a/OpenDreamRuntime/Objects/Types/DreamList.cs b/OpenDreamRuntime/Objects/Types/DreamList.cs
index 0689448131..e4310ece8e 100644
--- a/OpenDreamRuntime/Objects/Types/DreamList.cs
+++ b/OpenDreamRuntime/Objects/Types/DreamList.cs
@@ -372,6 +372,8 @@ public override DreamValue OperatorEquivalent(DreamValue b) {
             return DreamValue.False;
         if (GetLength() != secondList.GetLength())
             return DreamValue.False;
+        if(IsAssociative && (!secondList.IsAssociative || secondList.GetAssociativeValues().Count != GetAssociativeValues().Count))
+            return DreamValue.False;
 
         var firstValues = GetValues();
         var secondValues = secondList.GetValues();
@@ -380,6 +382,15 @@ public override DreamValue OperatorEquivalent(DreamValue b) {
                 return DreamValue.False;
         }
 
+        // Starting with 516, equivalence checks assoc values
+        if (IsAssociative) {
+            var secondListAssoc = secondList.GetAssociativeValues();
+            foreach (var kvp in GetAssociativeValues()) {
+                if(!secondListAssoc.TryGetValue(kvp.Key, out var assocValue) || !assocValue.Equals(kvp.Value))
+                    return DreamValue.False;
+            }
+        }
+
         return DreamValue.True;
     }