diff --git a/crates/dreammaker/src/ast.rs b/crates/dreammaker/src/ast.rs
index 49d8086a9..3c1cb6771 100644
--- a/crates/dreammaker/src/ast.rs
+++ b/crates/dreammaker/src/ast.rs
@@ -113,6 +113,7 @@ pub enum BinaryOp {
     Div,
     Pow,
     Mod,
+    FloatMod,
     Eq,
     NotEq,
     Less,
@@ -142,6 +143,7 @@ impl fmt::Display for BinaryOp {
             Div => "/",
             Pow => "**",
             Mod => "%",
+            FloatMod => "%%",
             Eq => "==",
             NotEq => "!=",
             Less => "<",
@@ -172,6 +174,7 @@ pub enum AssignOp {
     MulAssign,
     DivAssign,
     ModAssign,
+    FloatModAssign,
     AssignInto,
     BitAndAssign,
     AndAssign,
@@ -192,6 +195,7 @@ impl fmt::Display for AssignOp {
             MulAssign => "*=",
             DivAssign => "/=",
             ModAssign => "%=",
+            FloatModAssign => "%%=",
             AssignInto => ":=",
             BitAndAssign => "&=",
             AndAssign => "&&=",
@@ -233,6 +237,7 @@ augmented! {
     Mul = MulAssign;
     Div = DivAssign;
     Mod = ModAssign;
+    FloatMod = FloatModAssign;
     BitAnd = BitAndAssign;
     BitOr = BitOrAssign;
     BitXor = BitXorAssign;
diff --git a/crates/dreammaker/src/constants.rs b/crates/dreammaker/src/constants.rs
index 40adc04de..c75a240cf 100644
--- a/crates/dreammaker/src/constants.rs
+++ b/crates/dreammaker/src/constants.rs
@@ -684,6 +684,14 @@ impl<'a> ConstantFolder<'a> {
         numeric!(LessEq <=);
         numeric!(Greater >);
         numeric!(GreaterEq >=);
+        match (op, lhs, rhs) {
+            (BinaryOp::FloatMod, Float(lhs), Float(rhs)) => return Ok(Constant::from(lhs - ((lhs / rhs).floor() * rhs))),
+            (_, lhs_, rhs_) => {
+                lhs = lhs_;
+                rhs = rhs_;
+            }
+        }
+
         match (op, lhs, rhs) {
             (BinaryOp::Pow, Float(lhs), Float(rhs)) => return Ok(Constant::from(lhs.powf(rhs))),
             (_, lhs_, rhs_) => {
diff --git a/crates/dreammaker/src/lexer.rs b/crates/dreammaker/src/lexer.rs
index ed4c46d22..6a5abde35 100644
--- a/crates/dreammaker/src/lexer.rs
+++ b/crates/dreammaker/src/lexer.rs
@@ -71,9 +71,12 @@ table! {
     "!",   Not;
     "!=",  NotEq;
     "\"",  DoubleQuote;
+    "\"\"",  EmptyQuote;
     "#",   Hash;
     "##",  TokenPaste;
     "%",   Mod;
+    "%%",  FloatMod;
+    "%%=", FloatModAssign;
     "%=",  ModAssign;
     "&",   BitAnd;
     "&&",  And;
@@ -146,22 +149,26 @@ impl fmt::Display for Punctuation {
 /// character in the input, blazing fast. The code to generate it is contained
 /// in the following test.
 static SPEEDY_TABLE: [(usize, usize); 127] = [
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 1), (1, 2), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (2, 3), (3, 5), (5, 6), (6, 8), (0, 0), (8, 10), (10, 14), (14, 15),
-    (15, 16), (16, 17), (17, 20), (20, 23), (23, 24), (24, 27), (27, 30), (30, 34),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (34, 37), (37, 38), (38, 43), (43, 45), (45, 49), (49, 53),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (53, 54), (0, 0), (54, 55), (55, 57), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
-    (0, 0), (0, 0), (0, 0), (57, 59), (59, 63), (63, 64), (64, 67)];
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 1), (1, 2), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (2, 3), (3, 5), (5, 7),
+    (7, 9), (0, 0), (9, 13), (13, 17), (17, 18), (18, 19), (19, 20),
+    (20, 23), (23, 26), (26, 27), (27, 30), (30, 33), (33, 37), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (37, 40), (40, 41), (41, 46), (46, 48), (48, 52),
+    (52, 56), (0, 0), (0,0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (56, 57), (0, 0), (57, 58), (58, 60), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0),
+    (0, 0), (0, 0), (0, 0), (0, 0), (60, 62), (62, 66), (66, 67),
+    (67, 70)
+    ];
 
 #[test]
 fn make_speedy_table() {
@@ -278,6 +285,7 @@ impl Token {
                 Eq |
                 NotEq |
                 Mod |
+                FloatMod |
                 And |
                 BitAndAssign |
                 AndAssign |
diff --git a/crates/dreammaker/src/parser.rs b/crates/dreammaker/src/parser.rs
index cde624246..922ba0cc3 100644
--- a/crates/dreammaker/src/parser.rs
+++ b/crates/dreammaker/src/parser.rs
@@ -150,11 +150,12 @@ oper_table! { BINARY_OPS;
     Pow {
         (BinaryOp, Pow),
     }
-    // * / %
+    // * / % %%
     Mul {
         (BinaryOp, Mul), //
         (BinaryOp, Div = Slash), //
         (BinaryOp, Mod),
+        (BinaryOp, FloatMod),
     }
     // + -
     Add {
@@ -205,7 +206,7 @@ oper_table! { BINARY_OPS;
     Conditional {
         (TernaryOp, Conditional = QuestionMark),
     }
-    // = += -= -= *= /= %= &= |= ^= <<= >>=
+    // = += -= -= *= /= %= %%= &= |= ^= <<= >>=
     Assign {
         (AssignOp, Assign),
         (AssignOp, AddAssign),
@@ -213,6 +214,7 @@ oper_table! { BINARY_OPS;
         (AssignOp, MulAssign),
         (AssignOp, DivAssign),
         (AssignOp, ModAssign),
+        (AssignOp, FloatModAssign),
         (AssignOp, BitAndAssign),
         (AssignOp, BitOrAssign),
         (AssignOp, BitXorAssign),
@@ -887,6 +889,10 @@ impl<'ctx, 'an, 'inp> Parser<'ctx, 'an, 'inp> {
             last_part.push('%');
         } else if self.exact(Punct(ModAssign))?.is_some() {
             last_part.push_str("%=");
+        } else if self.exact(Punct(FloatMod))?.is_some() {
+            last_part.push_str("%%");
+        } else if self.exact(Punct(FloatModAssign))?.is_some() {
+            last_part.push_str("%%=");
         } else if self.exact(Punct(BitAnd))?.is_some() {
             last_part.push('&');
         } else if self.exact(Punct(BitAndAssign))?.is_some() {
@@ -944,6 +950,8 @@ impl<'ctx, 'an, 'inp> Parser<'ctx, 'an, 'inp> {
             } else {
                 last_part.push_str("[]");
             }
+        } else if self.exact(Punct(EmptyQuote))?.is_some() {
+            last_part.push_str("\"\"")
         }
         SUCCESS
     }