diff --git a/.github/workflows/legacy-test.yml b/.github/workflows/legacy-test.yml
index 2a779c342a..51800984de 100644
--- a/.github/workflows/legacy-test.yml
+++ b/.github/workflows/legacy-test.yml
@@ -45,9 +45,7 @@ jobs:
         with:
           go-version: 1.18
       - name: Run submodule tests and create test coverage profile.
-        # GIT_DIFF is passed to the scripts
         run: bash scripts/module-tests.sh
-        if: env.GIT_DIFF
       - uses: actions/upload-artifact@v3
         with:
           name: "${{ github.sha }}-go-submodules-coverage"
@@ -97,11 +95,9 @@ jobs:
       - uses: actions/download-artifact@v3
         with:
           name: "${{ github.sha }}-${{ matrix.part }}"
-        if: env.GIT_DIFF
       - name: test & coverage report creation
         run: |
           cat pkgs.txt.part.${{ matrix.part }} | xargs go test -mod=readonly -timeout 30m -coverprofile=${{ matrix.part }}profile.out -covermode=atomic -tags='legacy_simapp norace ledger test_ledger_mock'
-        if: env.GIT_DIFF
       - uses: actions/upload-artifact@v3
         with:
           name: "${{ github.sha }}-${{ matrix.part }}-coverage"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2c0b448770..2364cc8809 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -47,6 +47,8 @@ jobs:
           key: ${{ runner.os }}-go-build-${{ hashFiles('**/go.sum') }}
       - name: Build
         run: GOARCH=${{ matrix.go-arch }} LEDGER_ENABLED=false make build
+      - name: Build Legacy
+        run: GOARCH=${{ matrix.go-arch }} LEDGER_ENABLED=false COSMOS_BUILD_OPTIONS=legacy make build
 
       - name: Build cosmovisor
         run: GOARCH=${{ matrix.go-arch }} LEDGER_ENABLED=false make cosmovisor
diff --git a/Makefile b/Makefile
index 8ac5ec4e14..c386f74b96 100644
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,10 @@ ifeq (secp,$(findstring secp,$(COSMOS_BUILD_OPTIONS)))
   build_tags += libsecp256k1_sdk
 endif
 
+ifeq (legacy,$(findstring legacy,$(COSMOS_BUILD_OPTIONS)))
+  build_tags += legacy_simapp
+endif
+
 whitespace :=
 whitespace += $(whitespace)
 comma := ,
diff --git a/simapp/app_legacy.go b/simapp/app_legacy.go
index 4443d13d2c..37db22adca 100644
--- a/simapp/app_legacy.go
+++ b/simapp/app_legacy.go
@@ -255,25 +255,20 @@ func NewSimApp(
 	app.CapabilityKeeper.Seal()
 
 	// add keepers
-	app.AccountKeeper = authkeeper.NewAccountKeeper(
-		appCodec, keys[authtypes.StoreKey], app.GetSubspace(authtypes.ModuleName), authtypes.ProtoBaseAccount, maccPerms, sdk.Bech32MainPrefix,
-	)
+	app.AccountKeeper = authkeeper.NewAccountKeeper(appCodec, keys[authtypes.StoreKey], authtypes.ProtoBaseAccount, maccPerms, sdk.Bech32MainPrefix, authtypes.NewModuleAddress(govtypes.ModuleName).String())
+
 	app.BankKeeper = bankkeeper.NewBaseKeeper(
 		appCodec, keys[banktypes.StoreKey], app.AccountKeeper, app.GetSubspace(banktypes.ModuleName), app.ModuleAccountAddrs(),
 	)
 	app.StakingKeeper = stakingkeeper.NewKeeper(
 		appCodec, keys[stakingtypes.StoreKey], app.AccountKeeper, app.BankKeeper, app.GetSubspace(stakingtypes.ModuleName),
 	)
-	app.MintKeeper = mintkeeper.NewKeeper(
-		appCodec, keys[minttypes.StoreKey], app.GetSubspace(minttypes.ModuleName), app.StakingKeeper,
-		app.AccountKeeper, app.BankKeeper, authtypes.FeeCollectorName,
-	)
-	app.DistrKeeper = distrkeeper.NewKeeper(
-		appCodec, keys[distrtypes.StoreKey], app.GetSubspace(distrtypes.ModuleName), app.AccountKeeper, app.BankKeeper,
-		app.StakingKeeper, authtypes.FeeCollectorName,
-	)
+	app.MintKeeper = mintkeeper.NewKeeper(appCodec, keys[minttypes.StoreKey], app.StakingKeeper, app.AccountKeeper, app.BankKeeper, authtypes.FeeCollectorName, authtypes.NewModuleAddress(govtypes.ModuleName).String())
+
+	app.DistrKeeper = distrkeeper.NewKeeper(appCodec, keys[distrtypes.StoreKey], app.AccountKeeper, app.BankKeeper, app.StakingKeeper, authtypes.FeeCollectorName, authtypes.NewModuleAddress(govtypes.ModuleName).String())
+
 	app.SlashingKeeper = slashingkeeper.NewKeeper(
-		appCodec, keys[slashingtypes.StoreKey], app.StakingKeeper, app.GetSubspace(slashingtypes.ModuleName),
+		appCodec, legacyAmino, keys[slashingtypes.StoreKey], app.StakingKeeper, authtypes.NewModuleAddress(govtypes.ModuleName).String(),
 	)
 
 	invCheckPeriod := cast.ToUint(appOpts.Get(server.FlagInvCheckPeriod))
@@ -314,7 +309,7 @@ func NewSimApp(
 	*/
 	govKeeper := govkeeper.NewKeeper(
 		appCodec, keys[govtypes.StoreKey], app.GetSubspace(govtypes.ModuleName), app.AccountKeeper, app.BankKeeper,
-		app.StakingKeeper, govRouter, app.MsgServiceRouter(), govConfig,
+		app.StakingKeeper, app.MsgServiceRouter(), govConfig,
 	)
 
 	app.GovKeeper = *govKeeper.SetHooks(
@@ -357,16 +352,16 @@ func NewSimApp(
 			app.AccountKeeper, app.StakingKeeper, app.BaseApp.DeliverTx,
 			encodingConfig.TxConfig,
 		),
-		auth.NewAppModule(appCodec, app.AccountKeeper, authsims.RandomGenesisAccounts),
+		auth.NewAppModule(appCodec, app.AccountKeeper, authsims.RandomGenesisAccounts, app.GetSubspace(authtypes.ModuleName)),
 		vesting.NewAppModule(app.AccountKeeper, app.BankKeeper),
 		bank.NewAppModule(appCodec, app.BankKeeper, app.AccountKeeper),
 		capability.NewAppModule(appCodec, *app.CapabilityKeeper, false),
 		crisis.NewAppModule(app.CrisisKeeper, skipGenesisInvariants),
 		feegrantmodule.NewAppModule(appCodec, app.AccountKeeper, app.BankKeeper, app.FeeGrantKeeper, app.interfaceRegistry),
-		gov.NewAppModule(appCodec, app.GovKeeper, app.AccountKeeper, app.BankKeeper),
-		mint.NewAppModule(appCodec, app.MintKeeper, app.AccountKeeper, nil),
-		slashing.NewAppModule(appCodec, app.SlashingKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper),
-		distr.NewAppModule(appCodec, app.DistrKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper),
+		gov.NewAppModule(appCodec, &app.GovKeeper, app.AccountKeeper, app.BankKeeper),
+		mint.NewAppModule(appCodec, app.MintKeeper, app.AccountKeeper, nil, app.GetSubspace(minttypes.ModuleName)),
+		slashing.NewAppModule(appCodec, app.SlashingKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, app.GetSubspace(slashingtypes.ModuleName)),
+		distr.NewAppModule(appCodec, app.DistrKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, app.GetSubspace(distrtypes.ModuleName)),
 		staking.NewAppModule(appCodec, app.StakingKeeper, app.AccountKeeper, app.BankKeeper),
 		upgrade.NewAppModule(app.UpgradeKeeper),
 		evidence.NewAppModule(app.EvidenceKeeper),
@@ -427,15 +422,15 @@ func NewSimApp(
 	// NOTE: this is not required apps that don't use the simulator for fuzz testing
 	// transactions
 	app.sm = module.NewSimulationManager(
-		auth.NewAppModule(appCodec, app.AccountKeeper, authsims.RandomGenesisAccounts),
+		auth.NewAppModule(appCodec, app.AccountKeeper, authsims.RandomGenesisAccounts, app.GetSubspace(authtypes.ModuleName)),
 		bank.NewAppModule(appCodec, app.BankKeeper, app.AccountKeeper),
 		capability.NewAppModule(appCodec, *app.CapabilityKeeper, false),
 		feegrantmodule.NewAppModule(appCodec, app.AccountKeeper, app.BankKeeper, app.FeeGrantKeeper, app.interfaceRegistry),
-		gov.NewAppModule(appCodec, app.GovKeeper, app.AccountKeeper, app.BankKeeper),
-		mint.NewAppModule(appCodec, app.MintKeeper, app.AccountKeeper, nil),
+		gov.NewAppModule(appCodec, &app.GovKeeper, app.AccountKeeper, app.BankKeeper),
+		mint.NewAppModule(appCodec, app.MintKeeper, app.AccountKeeper, nil, app.GetSubspace(minttypes.ModuleName)),
 		staking.NewAppModule(appCodec, app.StakingKeeper, app.AccountKeeper, app.BankKeeper),
-		distr.NewAppModule(appCodec, app.DistrKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper),
-		slashing.NewAppModule(appCodec, app.SlashingKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper),
+		distr.NewAppModule(appCodec, app.DistrKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, app.GetSubspace(distrtypes.ModuleName)),
+		slashing.NewAppModule(appCodec, app.SlashingKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, app.GetSubspace(slashingtypes.ModuleName)),
 		params.NewAppModule(app.ParamsKeeper),
 		evidence.NewAppModule(app.EvidenceKeeper),
 		authzmodule.NewAppModule(appCodec, app.AuthzKeeper, app.AccountKeeper, app.BankKeeper, app.interfaceRegistry),