When does METAL SLUG DEFENSE get good?

The first 3 hours are a test. In the first 2 hours 1 in 2 reviews are negative (66%); after 5h it's 1 in 5 (21%). Fully opens up by hour 5.

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METAL SLUG DEFENSE

May 1, 2015 Steam: Mixed

The first 3 hours are a test

Gets good by 3h almost every game dips in hours 2–3

Fully opens up by 5h rated like by long-time players

Started playing 45% of owners

Steam reviews 57% positive of 2,245

What the data shows

In the first 2 hours 1 in 2 reviews are negative (66%); after 5h it's 1 in 5 (21%).
Fully opens up by hour 5.
The opening is criticised more than in 94% of games we track.
Only 45% of owners have even the first achievement — the rest barely played.

When it gets good

Share of positive reviews by how many hours the reviewer had played when writing the review.

before it gets good opening up fully opened up

Based on all 2,253 Steam reviews in every language. Median playtime in a sample of 300 reviews: 10.3h for positive, 1h for negative. Almost every game is rated lower in the first 2–3 hours: that window includes refunds and quick first impressions. What matters is how deep the dip is and how fast the game recovers.

Where players quit

Share of players who started the game and reached each story milestone. 100% is the most common achievement (44.6% of owners), so people who bought the game and never launched it don't count.

Story milestones aren't labeled yet; all achievements are listed below.

All achievements (64)

Area 1: "SOUTHEAST ASIA" conquered Conquer all stages in Area 1: "SOUTHEAST ASIA"! 100%
Area 2: "EAST ASIA" conquered Conquer all stages in Area 2: "EAST ASIA"! 59%
Area 3: "AFRICA" conquered Conquer all stages in Area 3: "AFRICA"! 43%
Area 4: "CENTRAL ASIA" conquered Conquer all stages in Area 4: "CENTRAL ASIA"! 37%
Area 5: "DR MOUREAU'S ISLAND" conquered Conquer all stages in Area 5: "DR MOUREAU'S ISLAND"! 33%
Area 1: Free "MARCHRIUS DENNIS ROSSI"! Area 1: Free "MARCHRIUS DENNIS ROSSI"! 30%
Area 2: Free "TARMICLE ROVING Ⅲ"! Area 2: Free "TARMICLE ROVING Ⅲ"! 26%
Area 6: "OCEANIA" conquered Conquer all stages in Area 6: "OCEANIA"! 26%
Area 7: "NORTH AMERICA SOUTH" conquered Conquer all stages in Area 7: "NORTH AMERICAN SOUTHERN"! 23%
Area 3: Free "FIOLINA GERMI"! Area 3: Free "FIOLINA GERMI"! 21%
Area 8: "SOUTH AMERICA" conquered Conquer all stages in Area 8: "SOUTH AMERICA"! 20%
Area 9: "NORTH ASIA" conquered Conquer all stages in Area 9: "NORTH ASIA"! 19%
Area 4: Free "ERI KASAMOTO"! Area 4: Free "ERI KASAMOTO"! 19%
Area 10: "SOUTH AFRICA" conquered Conquer all stages in Area 10: "SOUTH AFRICA"! 18%
Area 12: "NORTH AMERICA NORTH" conquered Conquer all stages in Area 12: "NORTH AMERICAN NORTHERN"! 18%
Boss Area 1: "WEST ASIA" conquered Conquer all stages in Boss Area 1: "WEST ASIA"! 18%
Area 11: "WESTERN EUROPE" conquered Conquer all stages in Area 11: "WESTERN EUROPE"! 18%
Area 5: Free "GIMLET"! Area 5: Free "GIMLET"! 17%
Boss Area 1: Capture "ABUL ABBAS"! Boss Area 1: Capture "ABUL ABBAS"! 17%
World2 Area 1: "SOUTHEAST ASIA" conquered Conquer all stages in World2 Area 1: "SOUTHEAST ASIA"! 16%
Area 6: Free "RED EYE"! Area 6: Free "RED EYE"! 16%
Area 7: Free "TREVOR SPACEY"! Area 7: Free "TREVOR SPACEY"! 15%
Boss Area 2: "NORTH AMERICAN N.WEST" conquered Conquer all stages in Boss Area 2: "NORTH AMERICAN NORTHWESTERN"! 15%
World2 Area 2: "EAST ASIA" conquered Conquer all stages in World2 Area 2: "EAST ASIA"! 15%
Area 12: Free "SV-CAMEL"! Area 12: Free "SV-CAMEL"! 15%
World2 Area 3: "AFRICA" conquered Conquer all stages in World2 Area 3: "AFRICA"! 15%
Area 8: Free "NADIA CASSEL"! Area 8: Free "NADIA CASSEL"! 14%
World2 Area 4: "CENTRAL ASIA" conquered Conquer all stages in World2 Area 4: "CENTRAL ASIA"! 14%
Boss Area 2: Capture "ALLEN O'NEIL"! Boss Area 2: Capture "ALLEN O'NEIL"! 14%
Boss Area 3: "EAST EUROPE" conquered Conquer all stages in Boss Area 3: "EAST EUROPE"! 14%
World2 Area 5: "DR MOUREAU'S ISLAND" conquered Conquer all stages in World2 Area 5: "DR MOUREAU'S ISLAND"! 14%
World2 Area 6: "OCEANIA" conquered Conquer all stages in World2 Area 6: "OCEANIA"! 14%
World2 Area 7: "NORTH AMERICA SOUTH" conquered Conquer all stages in World2 Area 7: "NORTH AMERICAN SOUTHERN"! 13%
Boss Area 3: Capture "DONALD MORDEN"! Boss Area 3: Capture "DONALD MORDEN"! 13%
Area 9: Free "WALTER RYAN"! Area 9: Free "WALTER RYAN"! 13%
Area 11: Free "RUMI AIKAWA"! Area 11: Free "RUMI AIKAWA"! 13%
World2 Area 8: "SOUTH AMERICA" conquered Conquer all stages in World2 Area 8: "SOUTH AMERICA"! 13%
Boss Area 4: "NORTH ASIA N.EAST" conquered Conquer all stages in Boss Area 4: "NORTH ASIA NORTHEASTERN"! 13%
Area 10: Free "TYRA ELSON"! Area 10: Free "TYRA ELSON"! 13%
World2 Area 9: "NORTH ASIA" conquered Conquer all stages in World2 Area 9: "NORTH ASIA"! 12%
World2 Area 10: "SOUTH AFRICA" conquered Conquer all stages in World2 Area 10: "SOUTH AFRICA"! 12%
World2 Area 11: "WESTERN EUROPE" conquered Conquer all stages in World2 Area 11: "WESTERN EUROPE"! 12%
Boss Area 4: Capture "MARS PEOPLE"! Boss Area 4: Capture "MARS PEOPLE"! 12%
World2 Area 12: "NORTH AMERICA NORTH" conquered Conquer all stages in World2 Area 12: "NORTH AMERICAN NORTHERN"! 12%
World2 Area 1: Free "RALF JONES"! World2 Area 1: Free "RALF JONES"! 12%
World2 Boss Area 1: "WEST ASIA" conquered Conquer all stages in World2 Boss Area 1: "WEST ASIA"! 11%
World2 Area 2: Free "CLARK STILL"! World2 Area 2: Free "CLARK STILL"! 11%
World2 Area 3: Free "WHIP"! World2 Area 3: Free "WHIP"! 11%
World2 Area 4: Free "LEONA HEIDERN"! World2 Area 4: Free "LEONA HEIDERN"! 11%
World2 Boss Area 1: Capture "ABUL ABBAS"! World2 Boss Area 1: Capture "ABUL ABBAS"! 11%
World2 Boss Area 2: "N.AMERICA N.WEST" conquered Conquer all stages in World2 Boss Area 2: "NORTH AMERICAN NORTHWESTERN"! 10%
World2 Area 12: Free "ZOMBIE MARCO"! World2 Area 12: Free "ZOMBIE MARCO"! 10%
World2 Area 5: Free "UTAN"! World2 Area 5: Free "UTAN"! 9.9%
World2 Boss Area 2: Capture "ALLEN O'NEIL"! World2 Boss Area 2: Capture "ALLEN O'NEIL"! 9.9%
World2 Area 6: Free "HYAKUTARO ICHIMONJI"! World2 Area 6: Free "HYAKUTARO ICHIMONJI"! 9.6%
World2 Area 7: Free "LILLY"! World2 Area 7: Free "LILLY"! 9.6%
World2 Boss Area 3: "EAST EUROPE" conquered Conquer all stages in World2 Boss Area 3: "EAST EUROPE"! 9.4%
World2 Area 8: Free "CYNTHIA"! World2 Area 8: Free "CYNTHIA"! 9.4%
World2 Boss Area 3: Capture "DONALD MORDEN"! World2 Boss Area 3: Capture "DONALD MORDEN"! 9.2%
World2 Area 11: Free "MADOKA AIKAWA"! World2 Area 11: Free "MADOKA AIKAWA"! 9.0%
World2 Boss Area 4: "NORTH ASIA N.EAST" conquered Conquer all stages in World2 Boss Area 4: "NORTH ASIA NORTHEASTERN"! 8.7%
World2 Area 9: Free "MARY"! World2 Area 9: Free "MARY"! 8.7%
World2 Area 10: Free "HEIDERN"! World2 Area 10: Free "HEIDERN"! 8.7%
World2 Boss Area 4: Capture "MARS PEOPLE"! World2 Boss Area 4: Capture "MARS PEOPLE"! 8.5%

Steam page Updated: 2026-10-19.