diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index 43c9b575ef..0611dbb199 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -152,10 +152,10 @@ var testNet4GenesisBlock = wire.MsgBlock{
 // simNetGenesisHash is the hash of the first block in the block chain for the
 // simulation test network.
 var simNetGenesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0xf6, 0x7a, 0xd7, 0x69, 0x5d, 0x9b, 0x66, 0x2a,
-	0x72, 0xff, 0x3d, 0x8e, 0xdb, 0xbb, 0x2d, 0xe0,
-	0xbf, 0xa6, 0x7b, 0x13, 0x97, 0x4b, 0xb9, 0x91,
-	0x0d, 0x11, 0x6d, 0x5c, 0xbd, 0x86, 0x3e, 0x68,
+	0xbe, 0xa4, 0x3b, 0x3a, 0xb4, 0xbc, 0x9d, 0x86,
+	0x2b, 0xfa, 0xbc, 0x0d, 0x45, 0xa3, 0xc5, 0xc9,
+	0xd0, 0x9f, 0x66, 0x20, 0xce, 0x7d, 0xb6, 0x78,
+	0xb5, 0xdc, 0x1d, 0xb8, 0x19, 0xc9, 0x35, 0x12,
 })
 
 // simNetGenesisMerkleRoot is the hash of the first transaction in the genesis
diff --git a/chaincfg/params.go b/chaincfg/params.go
index fec2ec2b57..b38de859b6 100644
--- a/chaincfg/params.go
+++ b/chaincfg/params.go
@@ -504,12 +504,13 @@ var SimNetParams = Params{
 	BIP0065Height:            0, // Always active on simnet
 	BIP0066Height:            0, // Always active on simnet
 	CoinbaseMaturity:         100,
-	SubsidyReductionInterval: 210000,
-	TargetTimespan:           time.Hour * 24 * 14, // 14 days
-	TargetTimePerBlock:       time.Minute * 10,    // 10 minutes
+	SubsidyReductionInterval: 840000,
+	// allow block every second to keep difficulty at its minimum
+	TargetTimespan:           (time.Hour * 24 * 3) + (time.Hour * 12), // 3.5 days
+	TargetTimePerBlock:       (time.Minute * 0) + (time.Second * 1),  // every second
 	RetargetAdjustmentFactor: 4,                   // 25% less, 400% more
 	ReduceMinDifficulty:      true,
-	MinDiffReductionTime:     time.Minute * 20, // TargetTimePerBlock * 2
+	MinDiffReductionTime:     time.Minute * 5, // TargetTimePerBlock * 2
 	GenerateSupported:        true,
 
 	// Checkpoints ordered from oldest to newest.
@@ -559,7 +560,7 @@ var SimNetParams = Params{
 
 	// BIP44 coin type used in the hierarchical deterministic path for
 	// address generation.
-	HDCoinType: 115, // ASCII for s
+	HDCoinType: 1,
 }
 
 var (