Game Retention Calculator

Cohort sizeD1 returning usersD3 returning usersD7 returning usersD14 returning usersD30 returning users

D30 retention

7%

This plots only the checkpoints you enter.

Retention Curve

No missing points are interpolated.

Series	Label	Value
Retention	D1	42%
Retention	D3	28%
Retention	D7	18%
Retention	D14	11%
Retention	D30	7%

D1

42%

4,200 returning users

D3

28%

2,800 returning users

D7

18%

1,800 returning users

D14

11%

1,100 returning users

D30

7%

700 returning users

Export data

Game engine export

Copy or download this result as clean data for your pipeline.

TargetFormat

{
  "id": "game-retention",
  "name": "Game retention curve",
  "description": "Retention checkpoint data for game analytics dashboards and prototypes.",
  "suggestedVariableName": "retentionCurve",
  "columns": [
    {
      "key": "day",
      "label": "Day",
      "type": "number"
    },
    {
      "key": "returningUsers",
      "label": "Returning users",
      "type": "number"
    },
    {
      "key": "retentionRate",
      "label": "Retention rate",
      "type": "number"
    }
  ],
  "rows": [
    {
      "day": 1,
      "returningUsers": 4200,
      "retentionRate": 42
    },
    {
      "day": 3,
      "returningUsers": 2800,
      "retentionRate": 28
    },
    {
      "day": 7,
      "returningUsers": 1800,
      "retentionRate": 18
    },
    {
      "day": 14,
      "returningUsers": 1100,
      "retentionRate": 11
    },
    {
      "day": 30,
      "returningUsers": 700,
      "retentionRate": 7
    }
  ]
}

Share this tool

Share the page, not your private inputs.

How to use this calculator

Turn raw returning-user counts into a clear retention curve.

How the calculation works

Enter cohort size.
Enter returning users for each checkpoint you have.
The tool calculates retention percentages and plots the entered checkpoints.

Formula

Retention percentage = returning users / cohort size x 100.

Example

700 D30 returning users from a 10,000-user cohort is 7% D30 retention.

Understanding your result

Use the output as a practical starting point, then review it before using it in an important workflow.

Game engine export

This gaming tool can export the visible result as structured JSON or CSV, plus text-based Unity, Unreal, and Godot snippets. The export is generated in your browser from the current result and is meant as a clean starting point for prototypes, balancing sheets, and engine-side data tables.

Assumptions and limitations

Do not send private analytics data; use aggregated counts only.
The chart does not invent missing checkpoints.

Frequently asked questions

Does this require an account?

No. The core tool works without creating a Tool2Do account.

Is my input included in share links or analytics?

No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.