We have sat through pitches where a heat map slide was presented as evidence

of rigour, when it was just a pretty picture with no hypothesis attached. Heat maps

are data visualisation tools that represent the intensity of data points across a space,

typically using colour gradients running from cool hues (low activity) to warm hues (high

activity). In gaming, they most often visualise player movement, interactions, and

engagement across different areas of a game environment – a genuinely useful tool, but

only when it is answering a question someone asked.

Where Heat Maps Add Real Value

• Player Behaviour Analysis – Revealing where players linger, which areas are frequently visited, and where they most often die—all of which inform where a design might need adjustment.
• Game Design Optimisation – An underused area often signals insufficient engagement, prompting a redesign to enhance interest.
• Gameplay Balancing – Surfacing overused weapons or strategies that need rebalancing for a fairer overall experience.
• Monetisation Opportunities – High-traffic areas identified through heat maps are often the strongest candidates for in-game advertising or microtransaction placement. We have seen a casual mobile title use exactly this kind of data on level interaction to redirect ad placement and see a meaningful lift in purchases the following quarter.

The pitfall we see most often is data overload dressed up as insight—a beautiful visualisation with no KPI attached to it, presented because it looks impressive rather than because it answers something. The fix is to define a small set of KPIs tied to specific objectives (engagement, session duration, high-death areas) before building the map, not after.

THE VENTANA VIEW

If you are going to show us a heat map, tell us the decision it changed. A heat map without a decision attached to it is a screenshot, not an insight.