diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 95527c0..e2e6440 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,35 +6,69 @@ on:
 
 jobs:
   linux_cuda:
-    name: cuda/release/linux
-    runs-on: ubuntu-latest
-    container: nvidia/cuda:12.9.1-devel-ubuntu22.04
-    env:
-      DEBIAN_FRONTEND: noninteractive
-      TZ: Etc/UTC
-    strategy:
-      matrix:
-        biomes: [0, 1]
-    steps:
-      - name: Install build tools
-        run: |
-          apt-get update
-          apt-get install -y build-essential g++-11
-      - uses: actions/checkout@v7
-      - name: Build (Linux, LARGE_BIOMES=${{ matrix.biomes }})
-        run: |
-          make LARGE_BIOMES=${{ matrix.biomes }} ARCH=sm_89 CC=gcc-11 CXX=g++-11
-      - uses: actions/upload-artifact@v7
-        with:
-          name: ${{ github.event.repository.name }}.${{ github.run_id }}.linux_x86.biomes${{ matrix.biomes }}
-          path: ./main
+      name: cuda/release/linux
+      runs-on: ubuntu-latest
+      container: nvidia/cuda:12.9.1-devel-ubuntu22.04
+      env:
+        DEBIAN_FRONTEND: noninteractive
+        TZ: Etc/UTC
+      strategy:
+        matrix:
+          variants: [0, 1, 2, 3]
+          include:
+            - variants: 0
+              biome_name: "small_biomes"
+              large_biomes: 0
+              unbound: 0
+            - variants: 1
+              biome_name: "small_biomes"
+              large_biomes: 0
+              unbound: 1
+            - variants: 2
+              biome_name: "large_biomes"
+              large_biomes: 1
+              unbound: 0
+            - variants: 3
+              biome_name: "large_biomes"
+              large_biomes: 1
+              unbound: 1
+      steps:
+        - name: Install build tools
+          run: |
+            apt-get update
+            apt-get install -y build-essential g++-11
+        - uses: actions/checkout@v7
+        - name: Build (Linux, biomes:${{ matrix.biomes }}, unbound:${{matrix.unbound}})
+          run: |
+            make LARGE_BIOMES=${{ matrix.large_biomes }} UNBOUND=${{matrix.unbound}} ARCH=all CC=gcc-11 CXX=g++-11
+        - uses: actions/upload-artifact@v7
+          with:
+            name: ${{ github.event.repository.name }}.${{ github.run_id }}.linux_x86.${{ matrix.biome_name }}
+            path: ./main-*
   
   windows_cuda:
     name: cuda/release/windows
     runs-on: windows-2022
     strategy:
       matrix:
-        biomes: [0, 1]
+        variants: [0, 1, 2, 3]
+        include:
+          - variants: 0
+            biome_name: "small_biomes"
+            large_biomes: 0
+            unbound: 0
+          - variants: 1
+            biome_name: "small_biomes"
+            large_biomes: 0
+            unbound: 1
+          - variants: 2
+            biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 0
+          - variants: 3
+            biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 1
     steps:
       - uses: actions/checkout@v7
       - uses: ilammy/msvc-dev-cmd@v1
@@ -76,11 +110,11 @@ jobs:
           echo "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           echo "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9\libnvvp" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           echo "CUDA_PATH=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-      - name: Build with Makefile (Windows, LARGE_BIOMES=${{ matrix.biomes }})
+      - name: Build with Makefile (Windows, biomes:${{ matrix.biome_name }}, unbound:${{ matrix.unbound }})
         shell: msys2 {0}
         run: |
-          make LARGE_BIOMES=${{ matrix.biomes }} ARCH=sm_89
+          make LARGE_BIOMES=${{ matrix.large_biomes }} UNBOUND=${{matrix.unbound}} ARCH=all
       - uses: actions/upload-artifact@v7
         with:
-          name: ${{ github.event.repository.name }}.${{ github.run_id }}.windows_x86.biomes${{ matrix.biomes }}
-          path: ./main.exe
+          name: ${{ github.event.repository.name }}.${{ github.run_id }}.windows_x86.${{matrix.biome_name}}
+          path: ./main-*.exe
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f60e86d..f746354 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,37 +15,61 @@ jobs:
       TZ: Etc/UTC
     strategy:
       matrix:
-        biomes: [0, 1]
+        variants: [0, 1, 2, 3]
         include:
-          - biomes: 0
+          - variants: 0
             biome_name: "small_biomes"
-          - biomes: 1
+            large_biomes: 0
+            unbound: 0
+          - variants: 1
+            biome_name: "small_biomes"
+            large_biomes: 0
+            unbound: 1
+          - variants: 2
+            biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 0
+          - variants: 3
             biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 1
     steps:
       - name: Install build tools
         run: |
           apt-get update
           apt-get install -y build-essential g++-11
       - uses: actions/checkout@v7
-      - name: Build (Linux, LARGE_BIOMES=${{ matrix.biomes }})
+      - name: Build (Linux, biomes:${{ matrix.biomes }}, unbound:${{matrix.unbound}})
         run: |
-          make LARGE_BIOMES=${{ matrix.biomes }} ARCH=all CC=gcc-11 CXX=g++-11
+          make LARGE_BIOMES=${{ matrix.large_biomes }} UNBOUND=${{matrix.unbound}} ARCH=all CC=gcc-11 CXX=g++-11
       - uses: actions/upload-artifact@v7
         with:
           name: ${{ github.event.repository.name }}.${{ github.run_id }}.linux_x86.${{ matrix.biome_name }}
-          path: ./main
+          path: ./main-*
   
   windows_cuda:
     name: cuda/release/windows
     runs-on: windows-2022
     strategy:
       matrix:
-        biomes: [0, 1]
+        variants: [0, 1, 2, 3]
         include:
-          - biomes: 0
+          - variants: 0
             biome_name: "small_biomes"
-          - biomes: 1
+            large_biomes: 0
+            unbound: 0
+          - variants: 1
+            biome_name: "small_biomes"
+            large_biomes: 0
+            unbound: 1
+          - variants: 2
+            biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 0
+          - variants: 3
             biome_name: "large_biomes"
+            large_biomes: 1
+            unbound: 1
     steps:
       - uses: actions/checkout@v7
       - uses: ilammy/msvc-dev-cmd@v1
@@ -87,14 +111,14 @@ jobs:
           echo "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           echo "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9\libnvvp" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           echo "CUDA_PATH=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.9" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-      - name: Build with Makefile (Windows, LARGE_BIOMES=${{ matrix.biomes }})
+      - name: Build with Makefile (Windows, biomes:${{ matrix.biome_name }}, unbound:${{ matrix.unbound }})
         shell: msys2 {0}
         run: |
-          make LARGE_BIOMES=${{ matrix.biomes }} ARCH=all
+          make LARGE_BIOMES=${{ matrix.large_biomes }} UNBOUND=${{matrix.unbound}} ARCH=all
       - uses: actions/upload-artifact@v7
         with:
           name: ${{ github.event.repository.name }}.${{ github.run_id }}.windows_x86.${{matrix.biome_name}}
-          path: ./main.exe
+          path: ./main-*.exe
 
   create_release:
     runs-on: ubuntu-latest
diff --git a/makefile b/makefile
index 0669883..15afc77 100644
--- a/makefile
+++ b/makefile
@@ -2,6 +2,17 @@ CUBIOMES_SRC := $(addprefix cubiomes/,biomenoise.c biomes.c finders.c generator.
 
 LARGE_BIOMES ?= 0
 UNBOUND ?= 0
+
+ifeq (UNBOUND, 1)
+	BIN_SUFFIX += u
+endif
+
+ifeq (LARGE_BIOMES, 1)
+	BIN_SUFFIX += lb
+else
+	BIN_SUFFIX += sb
+endif
+
 PRINT_INTERVAL ?= 256
 # Auto-detect GPU architecture:
 # - RTX 40xx/50xx series: sm_89 is faster than native sm_120
@@ -36,7 +47,7 @@ clean:
 
 # nvcc src/*.cpp src/*.c src/*.cu -o main.exe cubiomes/biomenoise.c cubiomes/biomes.c cubiomes/finders.c cubiomes/generator.c cubiomes/layers.c cubiomes/noise.c -arch=native -O3 -std=c++20 -I asio-1.34.2/include -DOMISSION_LARGE_BIOMES=1 --expt-relaxed-constexpr --default-stream per-thread -D_WIN32_WINNT=0x0601
 main.exe: $(SRC) $(CUBIOMES_SRC)
-	nvcc $(SRC) $(CUBIOMES_SRC) -o $@ $(NVCC_FLAGS) -D_WIN32_WINNT=0x0601
+	nvcc $(SRC) $(CUBIOMES_SRC) -o $@-$(BIN_SUFFIX) $(NVCC_FLAGS) -D_WIN32_WINNT=0x0601
 else
 override NVCC_FLAGS += -ccbin $(CXX)
 
@@ -92,5 +103,5 @@ server.o: src/server.cpp src/server.h src/common.h
 	$(CXX) -c $< -o $@ $(CXXFLAGS)
 
 main: $(MAIN_DEP)
-	$(MAIN_CXX) $(MAIN_SRC) -o $@ $(MAIN_CXXFLAGS)
+	$(MAIN_CXX) $(MAIN_SRC) -o $@-$(BIN_SUFFIX) $(MAIN_CXXFLAGS)
 endif