diff --git a/sessionzero-client/.editorconfig b/sessionzero-client/.editorconfig
new file mode 100644
index 0000000..f28239b
--- /dev/null
+++ b/sessionzero-client/.editorconfig
@@ -0,0 +1,4 @@
+root = true
+
+[*]
+charset = utf-8
diff --git a/sessionzero-client/.gitattributes b/sessionzero-client/.gitattributes
new file mode 100644
index 0000000..8ad74f7
--- /dev/null
+++ b/sessionzero-client/.gitattributes
@@ -0,0 +1,2 @@
+# Normalize EOL for all files that Git considers text files.
+* text=auto eol=lf
diff --git a/sessionzero-client/.gitignore b/sessionzero-client/.gitignore
new file mode 100644
index 0000000..0af181c
--- /dev/null
+++ b/sessionzero-client/.gitignore
@@ -0,0 +1,3 @@
+# Godot 4+ specific ignores
+.godot/
+/android/
diff --git a/sessionzero-client/assets/fonts/PTSerif-Bold.ttf b/sessionzero-client/assets/fonts/PTSerif-Bold.ttf
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diff --git a/sessionzero-client/assets/fonts/PTSerif-Bold.ttf.import b/sessionzero-client/assets/fonts/PTSerif-Bold.ttf.import
new file mode 100644
index 0000000..9c55450
--- /dev/null
+++ b/sessionzero-client/assets/fonts/PTSerif-Bold.ttf.import
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+[remap]
+
+importer="font_data_dynamic"
+type="FontFile"
+uid="uid://cda5yu66deuj"
+path="res://.godot/imported/PTSerif-Bold.ttf-8051b0fa76f185b2fc18ab534845872e.fontdata"
+
+[deps]
+
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+dest_files=["res://.godot/imported/PTSerif-Bold.ttf-8051b0fa76f185b2fc18ab534845872e.fontdata"]
+
+[params]
+
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+generate_mipmaps=false
+disable_embedded_bitmaps=true
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+msdf_size=48
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+keep_rounding_remainders=true
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+fallbacks=[]
+Compress=null
+compress=true
+preload=[]
+language_support={}
+script_support={}
+opentype_features={}
diff --git a/sessionzero-client/assets/fonts/PTSerif-BoldItalic.ttf b/sessionzero-client/assets/fonts/PTSerif-BoldItalic.ttf
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index 0000000..ea7d9c8
--- /dev/null
+++ b/sessionzero-client/assets/fonts/PTSerif-BoldItalic.ttf.import
@@ -0,0 +1,36 @@
+[remap]
+
+importer="font_data_dynamic"
+type="FontFile"
+uid="uid://1shkwwm5qoag"
+path="res://.godot/imported/PTSerif-BoldItalic.ttf-9d6c9502edd6b71743ab4797d30444e4.fontdata"
+
+[deps]
+
+source_file="res://assets/fonts/PTSerif-BoldItalic.ttf"
+dest_files=["res://.godot/imported/PTSerif-BoldItalic.ttf-9d6c9502edd6b71743ab4797d30444e4.fontdata"]
+
+[params]
+
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+antialiasing=1
+generate_mipmaps=false
+disable_embedded_bitmaps=true
+multichannel_signed_distance_field=false
+msdf_pixel_range=8
+msdf_size=48
+allow_system_fallback=true
+force_autohinter=false
+modulate_color_glyphs=false
+hinting=1
+subpixel_positioning=4
+keep_rounding_remainders=true
+oversampling=0.0
+Fallbacks=null
+fallbacks=[]
+Compress=null
+compress=true
+preload=[]
+language_support={}
+script_support={}
+opentype_features={}
diff --git a/sessionzero-client/assets/fonts/PTSerif-Italic.ttf b/sessionzero-client/assets/fonts/PTSerif-Italic.ttf
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diff --git a/sessionzero-client/assets/fonts/PTSerif-Italic.ttf.import b/sessionzero-client/assets/fonts/PTSerif-Italic.ttf.import
new file mode 100644
index 0000000..3586971
--- /dev/null
+++ b/sessionzero-client/assets/fonts/PTSerif-Italic.ttf.import
@@ -0,0 +1,36 @@
+[remap]
+
+importer="font_data_dynamic"
+type="FontFile"
+uid="uid://kvel7knyyr2a"
+path="res://.godot/imported/PTSerif-Italic.ttf-a3685582dbb902f065532c3c4000da5a.fontdata"
+
+[deps]
+
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+dest_files=["res://.godot/imported/PTSerif-Italic.ttf-a3685582dbb902f065532c3c4000da5a.fontdata"]
+
+[params]
+
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+antialiasing=1
+generate_mipmaps=false
+disable_embedded_bitmaps=true
+multichannel_signed_distance_field=false
+msdf_pixel_range=8
+msdf_size=48
+allow_system_fallback=true
+force_autohinter=false
+modulate_color_glyphs=false
+hinting=1
+subpixel_positioning=4
+keep_rounding_remainders=true
+oversampling=0.0
+Fallbacks=null
+fallbacks=[]
+Compress=null
+compress=true
+preload=[]
+language_support={}
+script_support={}
+opentype_features={}
diff --git a/sessionzero-client/assets/fonts/PTSerif-Regular.ttf b/sessionzero-client/assets/fonts/PTSerif-Regular.ttf
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diff --git a/sessionzero-client/assets/fonts/PTSerif-Regular.ttf.import b/sessionzero-client/assets/fonts/PTSerif-Regular.ttf.import
new file mode 100644
index 0000000..bce8a6a
--- /dev/null
+++ b/sessionzero-client/assets/fonts/PTSerif-Regular.ttf.import
@@ -0,0 +1,36 @@
+[remap]
+
+importer="font_data_dynamic"
+type="FontFile"
+uid="uid://c3xifagipsuma"
+path="res://.godot/imported/PTSerif-Regular.ttf-94a9005379b4e88a27da7d297b1b7431.fontdata"
+
+[deps]
+
+source_file="res://assets/fonts/PTSerif-Regular.ttf"
+dest_files=["res://.godot/imported/PTSerif-Regular.ttf-94a9005379b4e88a27da7d297b1b7431.fontdata"]
+
+[params]
+
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+antialiasing=1
+generate_mipmaps=false
+disable_embedded_bitmaps=true
+multichannel_signed_distance_field=false
+msdf_pixel_range=8
+msdf_size=48
+allow_system_fallback=true
+force_autohinter=false
+modulate_color_glyphs=false
+hinting=1
+subpixel_positioning=4
+keep_rounding_remainders=true
+oversampling=0.0
+Fallbacks=null
+fallbacks=[]
+Compress=null
+compress=true
+preload=[]
+language_support={}
+script_support={}
+opentype_features={}
diff --git a/sessionzero-client/d20_no-bg_medium.png b/sessionzero-client/d20_no-bg_medium.png
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index 0000000..7945baa
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diff --git a/sessionzero-client/d20_no-bg_medium.png.import b/sessionzero-client/d20_no-bg_medium.png.import
new file mode 100644
index 0000000..c0040fa
--- /dev/null
+++ b/sessionzero-client/d20_no-bg_medium.png.import
@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bxsq8il8lgcq2"
+path="res://.godot/imported/d20_no-bg_medium.png-e782821bc3f19395f5f0ad700f428576.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://d20_no-bg_medium.png"
+dest_files=["res://.godot/imported/d20_no-bg_medium.png-e782821bc3f19395f5f0ad700f428576.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/sessionzero-client/icon.svg b/sessionzero-client/icon.svg
new file mode 100644
index 0000000..c6bbb7d
--- /dev/null
+++ b/sessionzero-client/icon.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><rect width="124" height="124" x="2" y="2" fill="#363d52" stroke="#212532" stroke-width="4" rx="14"/><g fill="#fff" transform="translate(12.322 12.322)scale(.101)"><path d="M105 673v33q407 354 814 0v-33z"/><path fill="#478cbf" d="m105 673 152 14q12 1 15 14l4 67 132 10 8-61q2-11 15-15h162q13 4 15 15l8 61 132-10 4-67q3-13 15-14l152-14V427q30-39 56-81-35-59-83-108-43 20-82 47-40-37-88-64 7-51 8-102-59-28-123-42-26 43-46 89-49-7-98 0-20-46-46-89-64 14-123 42 1 51 8 102-48 27-88 64-39-27-82-47-48 49-83 108 26 42 56 81zm0 33v39c0 276 813 276 814 0v-39l-134 12-5 69q-2 10-14 13l-162 11q-12 0-16-11l-10-65H446l-10 65q-4 11-16 11l-162-11q-12-3-14-13l-5-69z"/><path d="M483 600c0 34 58 34 58 0v-86c0-34-58-34-58 0z"/><circle cx="725" cy="526" r="90"/><circle cx="299" cy="526" r="90"/></g><g fill="#414042" transform="translate(12.322 12.322)scale(.101)"><circle cx="307" cy="532" r="60"/><circle cx="717" cy="532" r="60"/></g></svg>
diff --git a/sessionzero-client/icon.svg.import b/sessionzero-client/icon.svg.import
new file mode 100644
index 0000000..f6a1da1
--- /dev/null
+++ b/sessionzero-client/icon.svg.import
@@ -0,0 +1,43 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://df3ww4j87ghry"
+path="res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.svg"
+dest_files=["res://.godot/imported/icon.svg-218a8f2b3041327d8a5756f3a245f83b.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false
diff --git a/sessionzero-client/project.godot b/sessionzero-client/project.godot
new file mode 100644
index 0000000..9c0407a
--- /dev/null
+++ b/sessionzero-client/project.godot
@@ -0,0 +1,26 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="SessionZero Client"
+run/main_scene="uid://fy5iji5t58jk"
+config/features=PackedStringArray("4.5", "GL Compatibility")
+config/icon="uid://bxsq8il8lgcq2"
+
+[gui]
+
+theme/custom="uid://mu3c8g7q4ygp"
+theme/custom_font="uid://c3xifagipsuma"
+
+[rendering]
+
+renderer/rendering_method="gl_compatibility"
+renderer/rendering_method.mobile="gl_compatibility"
diff --git a/sessionzero-client/resources/main_theme.tres b/sessionzero-client/resources/main_theme.tres
new file mode 100644
index 0000000..7a434f8
--- /dev/null
+++ b/sessionzero-client/resources/main_theme.tres
@@ -0,0 +1,8 @@
+[gd_resource type="Theme" load_steps=2 format=3 uid="uid://mu3c8g7q4ygp"]
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_2nojw"]
+bg_color = Color(0.101960786, 0.1254902, 0.18039216, 1)
+
+[resource]
+Background_Panel/base_type = &"Panel"
+Background_Panel/styles/panel = SubResource("StyleBoxFlat_2nojw")
diff --git a/sessionzero-client/scenes/desktop/main_ui.tscn b/sessionzero-client/scenes/desktop/main_ui.tscn
new file mode 100644
index 0000000..546fb48
--- /dev/null
+++ b/sessionzero-client/scenes/desktop/main_ui.tscn
@@ -0,0 +1,11 @@
+[gd_scene format=3 uid="uid://fy5iji5t58jk"]
+
+[node name="MainUI" type="CanvasLayer"]
+
+[node name="Panel" type="Panel" parent="."]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+theme_type_variation = &"Background_Panel"
diff --git a/sessionzero-client/scripts/models/datapack_model.gd b/sessionzero-client/scripts/models/datapack_model.gd
new file mode 100644
index 0000000..2d72ab2
--- /dev/null
+++ b/sessionzero-client/scripts/models/datapack_model.gd
@@ -0,0 +1,2 @@
+extends Object
+class_name DatapackModel
diff --git a/sessionzero-client/scripts/models/datapack_model.gd.uid b/sessionzero-client/scripts/models/datapack_model.gd.uid
new file mode 100644
index 0000000..5d60c1b
--- /dev/null
+++ b/sessionzero-client/scripts/models/datapack_model.gd.uid
@@ -0,0 +1 @@
+uid://dgj5rubcp6v00