# Welcome to XStacks {% embed url="" %} **How to Play** XStacks is a casual game published by Upland in 2025. It is an interactive 3D Block Puzzle game where players compete by progressing through levels. **Want to start right away? Download from the App Store.** **Game Objective** Score as many points as possible!! Points are earned by aligning blocks to form a full cylinder stack. The more vertical blocks the stack contains (with a maximum of 4 vertical blocks), the more points you win.\ Each level in the game has a minimum points you need to score in order to unlock the next level, which will increase in its difficulty, but also reward more points for each stack cleared. **Game Controls** Swipe left and right to pivot the stack's cylinder.\ Tap the screen to pivot the current falling block\ Swipe down to quickly place the block in its designated spot.\ Swipe down and hold to accelerate the block’s rate of falling. **Premium Access** XStacks is free to play. Each player has a daily limit of 10 level replays. To enjoy unlimited replays, you can purchase Premium Access on a monthly basis. **How are scores calculated?** * In-Game Performance: Earn points by clearing rows during gameplay. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://guides.upland.me/xstacks/welcome-to-xstacks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.