diff --git a/go.mod b/go.mod
index 7935b9c..4714552 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module git.chromaticdragon.app/kistaro/KoboldSim
 
 go 1.20
+
+require git.chromaticdragon.app/kistaro/CardSimEngine v0.1.1
\ No newline at end of file
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..2a7a9df
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,4 @@
+git.chromaticdragon.app/kistaro/CardSimEngine v0.1.0 h1:ZBByQW64MwyOloLGgQHMHgp4Vug6fj9ERdg8c+OEqBk=
+git.chromaticdragon.app/kistaro/CardSimEngine v0.1.0/go.mod h1:y511g1vH+CXntY0FauKYU7Y4gQy+jlkNzEFOws9Yxvg=
+git.chromaticdragon.app/kistaro/CardSimEngine v0.1.1 h1:nPp8ymzfnwzrzfzjkuvDAb4X73BUgUNBGKHhDp6Iz3c=
+git.chromaticdragon.app/kistaro/CardSimEngine v0.1.1/go.mod h1:VFaOagdbtM6gH87ioHent8v76nDh9PddpymMqWdrLfI=
diff --git a/koboldsim/aliases.go b/koboldsim/aliases.go
new file mode 100644
index 0000000..b71a085
--- /dev/null
+++ b/koboldsim/aliases.go
@@ -0,0 +1,10 @@
+// This file contains type aliases to abbreviate otherwise-verbose fully
+// quallified type names from cardsim, as used by koboldsim.
+
+package koboldsim
+
+import "git.chromaticdragon.app/kistaro/CardSimEngine/cardsim"
+
+type Player = cardsim.Player[*KoboldMine]
+type Card = cardsim.Card[*KoboldMine]
+type InfoPanel = cardsim.InfoPanel[*KoboldMine]
diff --git a/koboldsim/doc.go b/koboldsim/doc.go
new file mode 100644
index 0000000..098ca2a
--- /dev/null
+++ b/koboldsim/doc.go
@@ -0,0 +1,3 @@
+// Package koboldsim implements the rules and model for a kobold mine
+// simulation game, based on CardSimEngine.
+package koboldsim
diff --git a/koboldsim/flavor.go b/koboldsim/flavor.go
new file mode 100644
index 0000000..5aa2f3f
--- /dev/null
+++ b/koboldsim/flavor.go
@@ -0,0 +1,7 @@
+package koboldsim
+
+func RandomKoboldName() string {
+	// TODO: implement random two-part name generator.
+	// Rakeela, where's that list of kobold name-halves we had?
+	return "Kobold"
+}
diff --git a/koboldsim/setup.go b/koboldsim/setup.go
new file mode 100644
index 0000000..8640b4c
--- /dev/null
+++ b/koboldsim/setup.go
@@ -0,0 +1,37 @@
+package koboldsim
+
+import "git.chromaticdragon.app/kistaro/CardSimEngine/cardsim"
+
+func InitPlayer() *Player {
+	p := cardsim.InitPlayer(NewKoboldMine())
+	p.Name = RandomKoboldName()
+	initDeck(p.Deck)
+	initRules(p.Rules)
+	p.HandLimit = 3
+	p.InfoPanels = []InfoPanel{
+		&cardsim.BasicStatsPanel[*KoboldMine]{
+			Name:  cardsim.MsgStr("All Stats"),
+			Intro: cardsim.MsgStr("All available statistics."),
+		},
+	}
+	p.Prompt = &cardsim.BasicStatsPanel[*KoboldMine]{
+		Name:  cardsim.MsgStr("The Kobold Mine"),
+		Intro: cardsim.MsgStr("We await your command, Overlord."),
+		Filter: cardsim.VisibleOrDebugStatsNamed[*KoboldMine](
+			"Kobolds",
+			"Total Sector Productivity",
+			"Total Government Productivity",
+		),
+	}
+	p.State = cardsim.GameActive
+	p.DebugLevel = 5
+	return p
+}
+
+func initDeck(*cardsim.Deck[*KoboldMine]) {
+	// TODO: move to cards.go, add cards
+}
+
+func initRules(*cardsim.RuleCollection[*KoboldMine]) {
+	// TODO: move to rules.go, add rules
+}
diff --git a/koboldsim/stats.go b/koboldsim/stats.go
new file mode 100644
index 0000000..cb354ef
--- /dev/null
+++ b/koboldsim/stats.go
@@ -0,0 +1,88 @@
+package koboldsim
+
+import (
+	"git.chromaticdragon.app/kistaro/CardSimEngine/cardsim"
+)
+
+// KoboldMine is the state of a kobold mine.
+type KoboldMine struct {
+	Kobolds cardsim.Stored[int64]
+
+	SectorMiningProductivity     cardsim.Stored[float64]
+	SectorScavengingProductivity cardsim.Stored[float64]
+
+	GovBureaucracyProductivity cardsim.Stored[float64]
+	GovWarProductivity         cardsim.Stored[float64]
+}
+
+func (k *KoboldMine) ProductivityFunc(s *cardsim.Stored[float64]) func() float64 {
+	return func() float64 {
+		return s.Value * float64(k.Kobolds.Value)
+	}
+}
+
+func (k *KoboldMine) TotalSectorProductivity() float64 {
+	return float64(k.Kobolds.Value) * (k.SectorMiningProductivity.Value + k.SectorScavengingProductivity.Value)
+}
+
+func (k *KoboldMine) TotalGovProductivity() float64 {
+	return float64(k.Kobolds.Value) * (k.GovBureaucracyProductivity.Value + k.GovWarProductivity.Value)
+}
+
+func (k *KoboldMine) Stats() []cardsim.Stat {
+	stats := cardsim.ExtractStats(k)
+	funcs := []cardsim.Stat{
+		cardsim.StatFunc(
+			"Total Sector Mining Productivity",
+			k.ProductivityFunc(&k.SectorMiningProductivity),
+		),
+		cardsim.StatFunc(
+			"Total Sector Scavenging Productivity",
+			k.ProductivityFunc(&k.SectorScavengingProductivity),
+		),
+		cardsim.StatFunc(
+			"Total Government Bureaucracy Productivity",
+			k.ProductivityFunc(&k.GovBureaucracyProductivity),
+		),
+		cardsim.StatFunc(
+			"Total Government War Productivity",
+			k.ProductivityFunc(&k.GovBureaucracyProductivity),
+		),
+		cardsim.StatFunc(
+			"Total Sector Productivity",
+			k.TotalSectorProductivity,
+		),
+		cardsim.StatFunc(
+			"Total Government Productivity",
+			k.TotalGovProductivity,
+		),
+	}
+	stats = append(stats, funcs...)
+	cardsim.SortStats(stats)
+	return stats
+}
+
+func NewKoboldMine() *KoboldMine {
+	return &KoboldMine{
+		Kobolds: cardsim.Stored[int64]{
+			Name:  "Kobolds",
+			Value: 1000,
+		},
+		SectorMiningProductivity: cardsim.Stored[float64]{
+			Name:  "Sector Mining Productivity",
+			Value: 0.15,
+		},
+		SectorScavengingProductivity: cardsim.Stored[float64]{
+			Name:  "Sector Scavening Productivity",
+			Value: 0.1,
+		},
+		GovBureaucracyProductivity: cardsim.Stored[float64]{
+			Name:  "Government Bureaucracy Productivity",
+			Value: 0.05,
+		},
+		GovWarProductivity: cardsim.Stored[float64]{
+			Name:  "Government War Productivity",
+			Value: 0.1,
+		},
+	}
+}
diff --git a/main/main.go b/main/main.go
new file mode 100644
index 0000000..2c02640
--- /dev/null
+++ b/main/main.go
@@ -0,0 +1,17 @@
+// Binary koboldsim is an economic simulation game of a kobold mine.
+package main
+
+import (
+	"fmt"
+
+	"git.chromaticdragon.app/kistaro/CardSimEngine/cardsim"
+	"git.chromaticdragon.app/kistaro/KoboldSim/koboldsim"
+)
+
+func main() {
+	p := koboldsim.InitPlayer()
+	err := cardsim.RunSimpleTerminalUI(p)
+	if err != nil {
+		fmt.Println("Terminated with error:", err)
+	}
+}