Grid-Based Progression
Framework for implementing grid-based progression in games, covering the core loop, edge cases, and integration points.
Overview
Grid-Based Progression is a fundamental game mechanic that provides meaningful choices and consequences for player actions. The mechanic interacts with multiple other game systems, creating emergent gameplay that extends beyond its individual components. Modern implementations often combine this mechanic with procedural elements to increase variety and replayability.
Game Examples
MMORPGs
MMORPGs use this mechanic where players react to emergent situations to establish dominance in PvP. The system encourages experimentation, resulting in meaningful player agency.
Battle Royale Games
Battle Royale Games use this mechanic where players time their actions precisely to build a competitive advantage. Randomized elements ensure variety across sessions, resulting in a sense of mastery.
Pros & Cons
Advantages
- Creates satisfying contextual loops
- Provides clear haptic feedback on player actions
- Integrates naturally with crafting systems
- Creates meaningful tactical decisions for players
Disadvantages
- May create a complexity barrier for new players
- Creates potential for cheese strategies by experienced players
- Can create repetitive when RNG is unfavorable
- Risk of exploitation in multiplayer contexts
- May overwhelm accessibility-focused players with too many options
Implementation Patterns
Deterministic Skill Tree Engine
Core implementation pattern for handling grid-based progression logic with clean state management.
class GridBasedProgressionSystem {
tier = 1;
xp = 0;
addXP(amount: number) {
this.xp += amount;
while (this.xp >= this.xpToNext()) {
this.xp -= this.xpToNext();
this.tier++;
this.onLevelUp();
}
}
xpToNext() {
return Math.floor(200 * Math.pow(1.5, this.tier - 1));
}
onLevelUp() {
// Grant rewards for level tier
this.skill += 3;
}
}Rating Calculator
Event-driven pattern that reacts to grid-based progression changes and updates dependent systems.
const progressionTree = {
nodes: [
{ id: "foundation", cost: 1, requires: [], effect: "+10% damage" },
{ id: "journeyman", cost: 5, requires: ["foundation"], effect: "+25% damage, unlock combo" },
{ id: "master_skill", cost: 3, requires: ["journeyman"], effect: "+50% damage, unlock ultimate" },
],
canUnlock(nodeId: string, points: number, unlocked: Set<string>) {
const node = this.nodes.find(n => n.id === nodeId);
if (!node || unlocked.has(nodeId)) return false;
return points >= node.cost
&& node.requires.every(r => unlocked.has(r));
}
};Rating Calculator
Event-driven pattern that reacts to grid-based progression changes and updates dependent systems.
const progressionTree = {
nodes: [
{ id: "basic_strike", cost: 2, requires: [], effect: "+10% damage" },
{ id: "improved_skill", cost: 3, requires: ["basic_strike"], effect: "+25% damage, unlock combo" },
{ id: "master_skill", cost: 8, requires: ["improved_skill"], effect: "+50% damage, unlock ultimate" },
],
canUnlock(nodeId: string, points: number, unlocked: Set<string>) {
const node = this.nodes.find(n => n.id === nodeId);
if (!node || unlocked.has(nodeId)) return false;
return points >= node.cost
&& node.requires.every(r => unlocked.has(r));
}
};