osu! Strategy Guide · Cosmo Strategy Guides

01 · The Rhythm Loop

Hit circles in time with music; chain combos; chase pp.

Hit objects in time with music osu! gameplay centers on hitting visual objects in time with audio beats. Each beatmap is a community-created chart of objects synchronized to a song.
Accuracy is everything Hits are graded on timing precision: 300 (perfect), 100 (good), 50 (okay), miss. Higher accuracy yields higher score and pp.
Combo chains Consecutive hits build a combo. Breaking combo by missing or hitting a 50 resets the combo counter. Full combos (FC) are the perfection target.
Beatmaps span every genre Player-created beatmaps cover anime soundtracks, EDM, classical, video game music, K-pop, J-pop, every imaginable genre. Hundreds of thousands of community charts.
Free-to-play, no microtransactions osu! is fully free-to-play. Optional supporter benefits ($4/month) provide profile customization but no gameplay advantages.
Open-source codebase osu!lazer (the new client) is open-source on GitHub. Community contributions accepted; transparent development.
Massive global community Tens of millions of registered players across the lifetime of the game. Active competitive scene; tournament play; Twitch streaming culture.

02 · The Four Game Modes

Each tests different rhythm skills.

osu! (standard) Click circles and follow sliders

Click circles in time with the beat
Hold and follow sliders with your cursor
Spin spinners to maintain rotation

Bring: Hand-eye coordination and precise mouse / tablet aim.
Take: The original mode and most-played. Tests rhythm + cursor precision simultaneously.

The flagship mode. Most pro players play standard; the largest pp pool; the deepest competitive scene.

osu!taiko Drum-style rhythm

Red notes (don) and blue notes (kat)
Hit notes as they cross the timing line
No cursor aim required

Bring: Rhythm focus and reflexive key-pressing.
Take: Pure rhythm with no aim component. Tests speed and precision on a 4-key layout.

Inspired by the Taiko no Tatsujin series. Strong tournament scene; specialized skill set.

osu!catch Catch falling fruit

Move the catcher left and right
Catch fruits before they fall off-screen
Avoid bananas in special spinner sections

Bring: Lateral movement timing and predictive positioning.
Take: A unique reaction mode. Tests prediction and movement precision rather than tap timing.

The most-niche of the four modes. Smaller community but dedicated; tournament play exists.

osu!mania Vertical scrolling key columns

4K, 7K, or other key configurations
Notes scroll down vertical columns
Press matching key when notes reach the bottom

Bring: Multi-finger keyboard coordination.
Take: Stepmania / Beatmania-style. Tests independent finger coordination and pattern reading.

Strong community; appeals to players from other vertical-scrolling rhythm games.

03 · Beatmaps & Difficulty

Community-created charts; star-rated difficulty.

Star rating (difficulty) Beatmaps rated 1–9+ stars. 1-2 star (Easy), 2-3 (Normal), 3-4 (Hard), 4-5 (Insane), 5-6 (Expert), 6+ (Expert+, "Extra"). Higher stars require faster reactions and precision.
Difficulty curve recommendation New players start at 1-2 stars. Progress to 3-4 stars over months; 5+ stars is intermediate-advanced; 7+ stars is expert territory.
Beatmap browser In-game beatmap browser searches by song, mapper, difficulty, mode, and rating. Download community beatmaps directly.
Ranked vs Loved vs Unranked Ranked beatmaps award pp and global ranking. Loved beatmaps are community-favored but don’t award pp. Unranked are work-in-progress or experimental.
Beatmap mappers Community members create beatmaps. Famous mappers (Sotarks, Monstrata, pishifat, mfd, others) have signature styles. Follow favorites for new charts.
Beatmap collections and Featured Artists osu! has Featured Artists program with original music permitted. Curated map packs and tournament pools.
Practice mode Practice individual beatmap sections without affecting rank or pp. Master tough segments before full attempts.

04 · Mods

Modify gameplay for skill expression and pp bonuses.

Difficulty Reduction (no pp) Easy (EZ): reduces difficulty for newcomers. No Fail (NF): no pp; can’t fail beatmap. Half Time (HT): slows song to 75% speed. These mods grant no pp; useful for practice.
Difficulty Increase (pp bonuses) Hidden (HD): fades approach circles. Hard Rock (HR): increases circle size accuracy and approach rate. Double Time (DT): increases song speed to 150%. Nightcore (NC): DT plus pitch shift.
Flashlight (FL) Limits vision to a small bubble around cursor. Major difficulty increase; significant pp bonus when combined with HD.
SpunOut (SO) Auto-completes spinners. Lower pp multiplier; useful for players struggling with spinner aim.
Perfect (PF) and Sudden Death (SD) PF: fails on accuracy below 100%. SD: fails on first miss. Pressure modes for perfectionists.
Relax (RX) and Autopilot (AP) RX: auto-clicks. AP: auto-aims. Both grant no pp; cheats for fun-runs only (no competitive impact).
Combination strategies Stacking mods increases pp bonus multiplicatively. HD+HR+DT (HDHRDT) is the meta competitive combo for skill expression.

05 · Performance Points & Ranking

pp drives global ranking.

Performance points (pp) pp is the primary ranking currency. Each beatmap play awards pp based on difficulty, mods, accuracy, and combo. Higher pp = higher global rank.
Top 100 plays count Your top 100 highest-pp plays contribute to total pp. Weighted decay (top play counts 100%; 100th play counts ~3%). Stack top plays for ranking climb.
Weighting decay Each rank position multiplies remaining plays. Aim for higher pp plays to push lower plays out of your top 100; constant improvement is rewarded.
Global ranking Players ranked globally per mode. Top 100 / Top 1000 / Top 10000 are visible tier markers. Top 10 players have legendary status.
Country ranking Separate country rankings. Top players per country compete for national supremacy. Some countries (Poland, South Korea, USA) have famously competitive top tiers.
pp farming vs skill play Some maps award disproportionate pp ("pp farm maps"). Top players sometimes farm specific maps to push rank quickly. Others prefer purely skill-based pp through varied play.
Score Rank vs pp Rank Score Rank counts total score across all plays (rewards quantity). pp Rank rewards highest-difficulty performance. Both visible on profile.

06 · osu!lazer vs osu!stable

The modern rewrite vs the legacy client.

osu!stable (legacy) The original Windows-only client. Most competitive players still use stable. Mature, stable, well-known performance characteristics.
osu!lazer (modern rewrite) Cross-platform open-source rewrite. Available on Windows, macOS, Linux, iOS, Android. Modern engine and architecture.
Feature parity transitioning osu!lazer has been gradually achieving feature parity with stable. Most features now match; some niche features still being implemented.
Pp rank parity Both clients submit to the same global rank. Plays on either client count equivalently.
Mobile play (lazer only) osu!lazer brings osu! to iOS and Android. Touchscreen play; specialized control schemes. Not viable for competitive top-tier play but accessible.
Modding and skins Both clients support skin customization. Skins change visual elements (circle textures, hit sounds, interface). Hundreds of community skins available.
Recommended for new players New players should start with osu!lazer for cross-platform support and active development. Move to stable only if specific features (specific skins, tournament tools) demand it.

07 · Input Devices

Mouse, tablet, keyboard, or touchscreen.

Mouse-only (M+M) Mouse for aim; click with mouse buttons. Simplest setup; works for newcomers. Most pros switched away from mouse-only.
Mouse + Keyboard (M+K) Aim with mouse; click with keyboard keys (Z and X typical). Faster than M+M; common setup for early-to-intermediate players.
Tablet + Keyboard (T+K) Aim with graphics tablet (Wacom or similar); click with keyboard. Top competitive standard. Tablet provides precision and consistency; pros almost universally use tablets.
Touchscreen (mobile) osu!lazer on iOS / Android supports touchscreen. Specialized control; finger placement matters; not viable for top-tier competitive play.
Controller (limited) osu!lazer supports controller for osu!taiko and osu!mania. Standard mode less natural with controller; not competitive.
Tablet sizing Smaller active areas (A6) preferred for competitive play. Larger areas (A4) more comfortable but less precise. Top players typically map small areas of large tablets.
Setup customization In-game options let you adjust tablet area, mouse sensitivity, keybinds. Find a setup that works; consistency over micro-optimization.

08 · Practice & Improvement

The path to higher pp.

Vary your map selection Practicing the same maps repeatedly limits improvement. Play diverse difficulty patterns: streams, jumps, technical, alternating rhythms.
Focus on weaknesses Identify your weakest pattern type (streams, aim, alternating, etc.). Spend practice time on weak areas rather than playing comfortable maps.
Use DT (Double Time) for aim training Faster maps train aim and reading speed. Many top players use DT extensively for skill development.
Use HR (Hard Rock) for accuracy training Smaller circles and faster approach rate train accuracy. Combine with HD for pp bonus.
Watch top player replays osu! replays show exactly how top players approach each map. Study cursor paths, key timing, and rhythm interpretation.
Quality over quantity Focused practice beats marathon play. One hour of deliberate practice on weaknesses outperforms three hours of comfort-zone play.
Take breaks Rhythm games cause finger and wrist fatigue. Rest between sessions; stretch; protect long-term health.

09 · Community & Tournaments

Massive active competitive scene.

Official tournaments osu! World Cup (OWC) per mode. Country-based teams compete annually. The flagship official tournament.
Community-organized tournaments Thousands of community tournaments per year. Skill-bracket tournaments allow players of all levels to compete. Discord communities organize.
4-digit, 5-digit, 6-digit brackets Skill brackets named by rank ranges. Top 10000 (5-digit) tournaments; Top 100000 (6-digit) tournaments. Accessible competition for non-pros.
Twitch streaming culture Top players stream on Twitch. Notable streamers: mrekk, WhiteCat, Vaxei, Cookiezi (retired), many others. Watch for technique and entertainment.
Mappool culture Tournaments use curated mappool. Specific maps with specific mods. Practice the mappool for tournament participation.
Discord communities Active Discords per country, per skill bracket, per mode. Find practice partners; tournament organization; community support.
Map-making community Aspiring mappers can create and submit beatmaps. Map-making is its own art form within osu!; some mappers are as famous as top players.

10 · Audio & Settings

Tune for input latency and rhythm clarity.

Low audio latency Use audio drivers with low latency (ASIO, WASAPI). Sub-10ms audio latency is target. High latency makes precise timing impossible.
Headphones recommended Use headphones rather than speakers. Audio precision matters for rhythm timing; speakers introduce environmental delay.
Offset calibration osu! includes an offset calibration tool. Calibrate global offset for your audio setup; per-map offsets fine-tune individual charts.
Mouse polling rate (1000 Hz) Set mouse to 1000 Hz polling rate for input precision. Default 125 Hz introduces jitter.
Tablet driver tuning Use latest tablet drivers. OpenTabletDriver (community alternative) often outperforms vendor drivers in latency.
Disable Windows pointer enhancements Windows mouse acceleration interferes with osu! precision. Disable "Enhance pointer precision" in Windows settings.
Monitor refresh rate 144 Hz+ monitor preferred for smooth visuals. 60 Hz works but introduces visual jitter at high cursor speeds.

11 · Pro Tips

Compound habits across the long osu! arc.

Set realistic improvement targets Rank improvement is slow above 100k. Focus on personal best beats and pp gains rather than absolute rank position.
Identify your map style preferences Streams, jumps, technical, alternating, doubles. Each pattern type tests different skills; you’ll prefer some over others.
Use DT for skill development Double Time forces faster reading and reaction. Even practicing maps you know well with DT improves overall skill.
Watch top player replays for your maps Compare your replay to top players’ replays on the same maps. Cursor path differences reveal optimization opportunities.
Join a Discord community Solo improvement plateaus. Join your country’s or skill bracket’s Discord; play with friends; participate in tournaments.
Take breaks for health Wrist, shoulder, and finger health matter long-term. Stretch regularly; rest sessions; treat osu! like an athletic activity.
Have fun osu! is best when enjoyed. Don’t grind miserably for rank; play the maps and modes you love; the rank follows passion.